what size tank would be needed to contain this same amount of helium at atmospheric pressure (1 atm )?

Answers

Answer 1

When 20.6 g of helium is present in a container at a pressure of 5.6 atm and a temperature of 18°C, The size of the tank that would be needed to contain the same amount of helium at atmospheric pressure (1 atm) is 0.294 L.

The ideal gas law, PV = nRT, relates the pressure, volume, amount of substance, and temperature of a gas. Where:V: volume, P: pressure, n: number of moles of gas, R: the gas constant, T: temperature

The ideal gas law, PV = nRT, can be rearranged to find the volume of a gas given its pressure, number of moles, and temperature as shown below:

V = nRT/P

In this problem, we are required to find the size of a tank required to hold a specified number of moles of helium gas under different conditions (1 atm, 18°C) from the conditions under which the helium is presently stored (5.6 atm, 18°C).

As a result, the number of moles of helium in the container at 5.6 atm and 18°C must first be determined.

employing  the ideal gas law:

PV = nRT

n = PV/RT

n = (5.6 atm)(0.015 m³)/(0.08206 L·atm/mol·K)(291.15 K)

n = 0.01237 mol

We'll now use the number of moles determined above to calculate the size of the tank required at a pressure of 1 atm and 18°C using the ideal gas law.

V = nRT/P

V = (0.01237 mol)(0.08206 L·atm/mol·K)(291.15 K)/1 atm

V = 0.294 L

Therefore, the size of the tank required at 1 atm and 18°C is 0.294 L.

For more such questions on  atmospheric pressure, click on:

https://brainly.com/question/20726014

#SPJ11

The probable question may be:

When 20.6 g of helium is present in a container at a pressure of 5.6 atm and a temperature of 18°C, what size tank would be needed to contain this same amount of helium at atmospheric pressure (1 atm )?


Related Questions

an ant of mass 1 gram clings to the rim of a flywheel of radius 0.4 m. the flywheel rotates clockwise on a horizontal shaft s at a constant rate of 2 revolutions per second. as the wheel rotates, the ant revolves past the stationary points i, ii, iii, and iv. the ant can adhere to the wheel with a force much greater than its own weight. what force must the ant hold on to stay on the wheel at point iii?

Answers

If the flywheel's rotational velocity is constant and the force applied by the ant is strong enough, the ant will adhere to the wheel's rim without slipping.

In this case, the ant's tangential velocity will be the same as the wheel's tangential velocity, and the centripetal force acting on the ant will be supplied by the frictional force.Using F = ma, we know that a = v^2/r. We can then substitute the value for the angular velocity and wheel radius to get the centripetal acceleration.

The centripetal force on the ant is m*ac. This centripetal force is supplied by the ant's grip on the wheel. Since the ant can hold on to the wheel with a force much greater than its own weight, it is safe to assume that the force of the grip is greater than the centripetal force.

In conclusion, the force with which the ant must hold on to stay on the wheel at point III is equal to the centripetal force exerted on it, which is equal to its mass multiplied by its centripetal acceleration, which is equal to m*v^2/r.

The mass of the ant is given as 1 gram (0.001 kg), and the radius of the wheel is given as 0.4 m. The linear velocity v can be calculated using the formula v = ωr. Therefore, the force required to keep the ant on the wheel at point III is:F = m*v^2/rF = 0.001*[(2*2*3.14*0.4)^2]/0.4F = 9.92 N (approximately)

To Learn More About Flywheel's

https://brainly.com/question/29452668

#SPJ11

consider a conducting bar that is free to slide along conducting rails in an upward magnetic field as shown in the diagram below. if we connect the rails to the battery shown, which way will the bar be pushed?

Answers

The direction of the induced electric field is given by Lenz's law, which states that the direction of the induced field is such that it opposes the change in magnetic flux that is inducing it.

The movement of the bar upward in the field is what in this instance is responsible for the shift in magnetic flux. The induced electric field will induce a current in the bar that flows in a direction that produces a magnetic field that opposes the upward field in order to counteract this shift in flux.

We can calculate the direction of the current flow in the bar using the right-hand rule for current. Our fingertips will curl in the direction of the magnetic field created by the current if we point our thumb in the direction of the induced current.

For such more question on magnetic flux:

https://brainly.com/question/16234377

#SPJ11

how can sounds be changed and what is the cause of the change?

Answers

Sounds can be changed in a variety of ways depending on the source of the sound and the type of change you want to make. Here are a few examples:

PitchVolumeTimbreDuration

What are the cause of the change in sound?

The cause of the change depends on the type of change being made. For example, changing the pitch of a sound is caused by altering the frequency of the sound wave, while changing the volume is caused by altering the amplitude of the sound wave.

In general, changes to sound waves can be caused by physical manipulation of the sound source, such as adjusting the properties of a musical instrument, or by electronic processing of the sound signal using digital signal processing techniques.

Learn about sounds here https://brainly.com/question/95976

#SPJ1

Why is an ammeter always connected in series and a voltmeter always in parallel in a circuit?​

Answers

An ammeter always connected in series and a voltmeter always in parallel in a circuit.

An ammeter is always connected in series because it is used to measure the current flowing through a particular part of a circuit. When an ammeter is connected in series, all of the current flowing through the circuit also flows through the ammeter. By measuring this current, the ammeter can provide an accurate reading of the current in that part of the circuit. If an ammeter were connected in parallel, it would change the resistance of the circuit and interfere with the current flow, giving an inaccurate reading.

A voltmeter is always connected in parallel because it is used to measure the voltage difference between two points in a circuit. When a voltmeter is connected in parallel, it is connected across the two points where the voltage difference is to be measured. This means that the voltmeter has a very high resistance, which ensures that it draws very little current from the circuit and does not affect the voltage being measured. If a voltmeter were connected in series, it would change the resistance of the circuit and interfere with the voltage being measured, giving an inaccurate reading.

Hence, an ammeter always connected in series and a voltmeter always in parallel in a circuit.

To know more about ammeter here

https://brainly.com/question/20379687

#SPJ1

what is the maximum distance, in kilometers, at which the eye can resolve these two headlights at night? take the pupil diameter to be 0.4 cm.

Answers

The maximum distance at which the eye can resolve two headlights at night, given a pupil diameter of 0.4 cm, is approximately 11,937.3 meters or 11.937 kilometers.

To calculate the maximum distance at which the eye can resolve two headlights at night, we can use the formula for the angular resolution of the human eye, which is based on the Rayleigh criterion:

θ = 1.22 * (λ / D)

Where:
θ = angular resolution in radians
λ = wavelength of light (average wavelength of visible light is approximately 550 nm, or 5.5 x 10^-7 meters)
D = diameter of the aperture (pupil diameter, given as 0.4 cm or 0.004 meters)

First, calculate the angular resolution:

θ = 1.22 * (5.5 x 10^-7 m / 0.004 m) = 1.678 x 10^-4 radians

Now, to find the maximum distance (d) at which the eye can resolve two headlights, we can use the formula

d = L / tan(θ)
Where:
L = distance between the headlights (assuming a standard separation of 2 meters)
Before calculating, we need to make sure that the angular resolution (θ) is in the same unit (radians) as the tangent function requires:
θ = 1.678 x 10^-4 radians
Now, calculate the maximum distance:
d = 2 m / tan(1.678 x 10^-4) ≈ 11937.3 meters
Therefore, the maximum distance at which the eye can resolve two headlights at night, given a pupil diameter of 0.4 cm, is approximately 11,937.3 meters or 11.937 kilometers.

For more such questions on distance , Visit:

https://brainly.com/question/25825784

#SPJ11

consider two stars, one at a distance of 10,000 light years from the galactic center and one at a distance of 26,000 light years from the galactic center. which stars has a higher rotational velocity?

Answers

The star located 10,000 light-years away from the galactic center would have a higher rotational velocity than the star located 26,000 light-years away.

The galaxy's rotational speed is not constant across its radius. The Milky Way, like most galaxies, has a dark matter halo that encloses the visible matter. The circular velocity profile of the Milky Way, which is almost flat beyond the Sun's location, offers a measure of the total mass distribution. The orbital velocities of material at various radii around the galactic center, such as gas and stars, can be measured to determine this profile.

Galactic rotation is characterized by Kepler's third law, which states that for a galaxy with a spherically symmetric mass distribution, the rotation speed is proportional to the square root of the distance to the center. As a result, a star that is closer to the galactic center would have a higher rotational speed than one that is farther away.

Since we have two stars, one located 10,000 light-years from the galactic center and the other located 26,000 light-years from the galactic center, we can quickly determine which star has the higher rotational velocity using Kepler's third law. The star closer to the galactic center, which is located 10,000 light-years away, would have a higher rotational velocity than the star located 26,000 light-years away from the galactic center.

Know more about galactic center here:

https://brainly.com/question/30217143

#SPJ11

the body position sense that orients us with respect to gravity and the immediate environment is a function of

Answers

The body position sense that orients us with respect to gravity and the immediate environment is a function of the vestibular system, which is located in the inner ear.

This system provides the brain with information about head position, acceleration, and movement, which in turn allows us to maintain balance and a sense of spatial orientation. Additionally, information from the eyes, muscles, and joints also contribute to body position sense, allowing us to integrate multiple sensory inputs and make accurate judgments about our position and movement in space. Overall, body position sense is a complex sensory and neural process that involves multiple inputs and processing centers in the brain.

To know more about body, here

brainly.com/question/10530344

#SPJ4

the work done on a sligshot is 40 to pull back a 0.10 kg stone. if the slingshot projects the stone straight up in the air, what is the maximum height to which the stone will rise?

Answers

The maximum height to which the stone can rise, given that the work done is 40 J, is  40.82 m

How do i determine the maximum height to which the stone can rise?

First, we shall list out the given parameters from the question. This is given below:

Work done (Wd) = 40 JoulesMass of stone (m) = 0.10 KgAcceleration due to gravity (g) = 9.8 m/s² Maximum height (h) =?

We can obtain the maximum height to which the stone can rise as follow

Wd = mgh

40 = 0.10 × 9.8 × h

40 = 0.98 × h

Divide both sides by 0.98

h = 40 / 0.98

h = 40.82 m

Thus, the maximum height to which the stone can rise is 40.82 m

Learn more about height:

https://brainly.com/question/22740770

#SPJ1

If the roller coaster weighs 10,000kg and is traveling at 85 meters per second (m/s) what is the kinetic energy? Kinetic energy is measured in joules (j)?

Answers

Answer:

36,125KiloJoules.

Explanation:

K.E= 1/2MV².

that's 0.5 X 10,000 X 85.

which equals 36, 125, 000 Joules or 36,125 Kilo Joules.

Answer:

36,125,000 Joule is the answer according to the formula KE=1/2×m×(v)2

A 5 kg cannonball is shot out of a cannon and has an acceleration of 8 m/s^2 at the point where it exits the cannon. What force, in N, was applied to the cannonball? (only enter the number)

Answers

The force, in N, applied to the cannonball can be calculated using Newton's Second Law of Motion, which states that the force applied to an object is equal to its mass times its acceleration:

Force = mass x acceleration

Plugging in the given values, we get:

Force = 5 kg x 8 m/s^2 = 40 N

Therefore, the force applied to the cannonball was 40 N.

when measuring your angles of incidence and angles of refraction, how should you always make sure to measure them?

Answers

When measuring angles of incidence and angles of refraction, always make sure to measure them from the normal line, which is perpendicular to the surface at the point of contact. This ensures accurate measurements and proper calculations in refraction scenarios.

When measuring angles of incidence and angles of refraction, it is essential to ensure that you always measure them using the correct tools or instruments.What is an angle?An angle is a measure of rotation, expressed in degrees, that two lines or sides create around a common point called the vertex. Two rays or lines originate from a single point and diverge in different directions to form an angle.Measuring anglesTo measure angles, you'll need a protractor, a device that's specifically built for this task. Place the protractor on the angle's vertex so that the base lines of the protractor are parallel to the lines or sides of the angle you're measuring.Angle of incidenceThe angle of incidence is the angle between the incident ray and the normal line to a surface, such as the surface of an optical lens, mirror, or prism. The angle of incidence is denoted by the Greek letter “θ” (theta).Angle of refractionThe angle of refraction is the angle between the refracted ray and the normal line to a surface, such as the surface of an optical lens, mirror, or prism. The angle of refraction is denoted by the Greek letter “θ” (theta).Therefore, when measuring angles of incidence and angles of refraction, it is essential to ensure that you always measure them using the correct tools or instruments. The angle measurement process is done using a protractor.

Learn more about angles of refraction here;

https://brainly.com/question/14760207

#SPJ4

which things are audible? select all that apply. responses clouds forming clouds forming birds singing in the trees birds singing in the trees lightning streaking across the sky lightning streaking across the sky wind howling

Answers

Audible things: birds singing, wind howling. Clouds forming and lightning are not audible because they don't produce sound waves.

Of the choices given, two things are discernible: birds singing in the trees and wind yelling.

Mists framing and lightning streaking across the sky are not perceptible on the grounds that they don't deliver sound waves. Mists framing are a visual peculiarity brought about by changes in temperature and dampness in the air, and lightning produces electromagnetic waves however not sound waves.

Birds singing in the trees and wind crying are both perceptible in light of the fact that they produce sound waves. Birds produce sound by vibrating their vocal ropes, and the subsequent sound waves can head out through the air to be heard by people. Wind can make objects vibrate, delivering sound waves that can likewise be heard by people.

To learn more about audible wave, refer:

https://brainly.com/question/30065253

#SPJ4

unpolarized light passes through polarizer at 60 degrees from vertical, what is the intensity of the light?

Answers

When unpolarized light passes through a polarizer at 60 degrees from the vertical, the intensity of the light is halved.

Unpolarized light, which consists of light waves vibrating in all planes perpendicular to the direction of propagation, does not have a specific direction of oscillation. This means that its electric field is randomly polarized in all directions perpendicular to the direction of motion. Polarization refers to the direction in which the electric field is oscillating.

Polarized light waves have an electric field that is oscillating in only one direction, whereas unpolarized light has an electric field that is oscillating in all directions perpendicular to the direction of motion. A polarizer is a filter that polarizes light waves by allowing only those waves that are oscillating in a particular direction to pass through. If unpolarized light passes through a polarizer at a 60-degree angle to the vertical, only half of its intensity will be able to pass through.

To learn more about Unpolarized light :

https://brainly.com/question/30739829

#SPJ11

Determine the resistance of a aluminum wire, if the resistance of the cone obtained after cutting it into ten equal parts and stacking them is found to be 1 ohm

Answers

Answer:

The resistance of the original aluminum wire is 1/100 ohm.

Explanation:

A wire's resistance is proportional to its length and inversely proportional to its cross-sectional area. When a wire is cut into ten equal segments and stacked, its length is decreased by one-tenth yet its cross-sectional area stays constant.

Let R denote the original aluminium wire's resistance.

When the wire is cut into ten equal sections and stacked, the resistance of each component is ten times that of the original wire (since the length is one-tenth and the cross-sectional area stays constant). As a result, the resistance of one portion is 10R.

The resistance of the whole cone is 1 ohm when all 10 pieces are stacked. As a result, one portion has a resistance of 1/10 ohm.

Equating the resistance of one part to 10R, we get:

10R = 1/10 ohm

Solving for R, we get:

R = 1/100 ohm

Therefore, the resistance of the original aluminum wire is 1/100 ohm.

To know more about resistance of wire:

https://brainly.com/question/12283329?referrer=searchResults

pls help me with this question I need it by Monday thanks Q1 and 2​

Answers

1) current

2) in series

3) voltage

4) In parallel

How are ammeters and voltmeters connected?

Ammeters are connected in series with the component or part of the circuit being measured, so that the entire current flows through the ammeter. This means that the ammeter must have a very low resistance, so that it does not significantly alter the current being measured. Typically, ammeters have a built-in shunt resistor to achieve this low resistance.

On the other hand, voltmeters are connected in parallel with the component or part of the circuit being measured, so that they measure the voltage across the component or part. This means that the voltmeter must have a very high resistance, so that it does not draw significant current from the circuit and alter the voltage being measured. Typically, voltmeters have a built-in series resistor to achieve this high resistance.

Learn more about ammeter:https://brainly.com/question/30849022

#SPJ1

after running three trials with a fan cart, which has a mass of 480 g, on a horizontal track you have collected the following data. trial 1 trial 2 trial 3 acceleration from x-t graph (m/s2) 0.642 0.622 0.651 acceleration from v-t graph (m/s2) 0.618 0.664 0.604 120 g is added to the cart and it is placed at rest on a track inclined at 4.5o (with respect to the horizontal). the fan is set to push the cart up the incline. will the cart accelerate up the incline, down the incline, or remain at rest? explain fully.

Answers

Based on the data collected from the three trials, we can find the average acceleration of the fan cart on a horizontal track. To do this, we will calculate the mean of the six acceleration values provided:

(0.642 + 0.622 + 0.651 + 0.618 + 0.664 + 0.604) / 6 = 3.801 / 6 = 0.634 m/s^2

Now, the mass of the fan cart is 480 g, which we will convert to kg:

480 g * (1 kg / 1000 g) = 0.48 kg

After adding 120 g to the cart, the new mass becomes:

0.48 kg + (120 g * 1 kg / 1000 g) = 0.48 kg + 0.12 kg = 0.60 kg

Next, we need to determine the gravitational force acting on the cart along the incline. This can be calculated using the formula:

F_gravity = m * g * sin(theta)

where m is the mass of the cart, g is the gravitational constant (approximately 9.81 m/s^2), and theta is the angle of inclination.

F_gravity = 0.60 kg * 9.81 m/s^2 * sin(4.5°) ≈ 0.60 kg * 9.81 m/s^2 * 0.078 ≈ 4.72 N

Now, we'll calculate the force exerted by the fan using the formula:

F_fan = m * a

where m is the mass of the cart, and a is the average acceleration calculated earlier.

F_fan = 0.60 kg * 0.634 m/s^2 ≈ 0.38 N

Since the gravitational force (4.72 N) is greater than the force exerted by the fan (0.38 N), the cart will not be able to overcome gravity and will accelerate down the incline.

To Learn More About Acceleration

https://brainly.com/question/460763

#SPJ11

every decade, the sea ice declines by 10 percent. if there were 6 million km2 of sea ice in the year 2000, how much would remain in 2020? group of answer choices

Answers

Option b. 4.86 million km2 of sea ice would remain in 2020 if the decline rate continued at 10% per decade.

Ocean ice is a significant piece of the World's environment framework, reflecting daylight and managing the planet's temperature. Be that as it may, environmental change has caused a decrease in how much ocean ice over ongoing many years, with a typical decay pace of around 10% each 10 years. This intends that for each decade that passes, how much ocean ice remaining is 90% of the earlier ten years' sum.

To work out how much ocean ice would stay in a specific year, we can utilize the recipe: remaining ice = (1-0.1)^n * beginning ice, where n is the quantity of many years that have passed and starting ice is how much ocean ice in the beginning year. For instance, in the event that there were 6 million km2 of ocean ice in the year 2000 and 20 years (twenty years) have passed, we can compute the excess ice in 2020 as follows: remaining ice = (1-0.1)^2 * 6 million km2, which approaches around 4.86 million km2.

This computation features the huge loss of ocean ice over a generally brief timeframe, with practically 20% of the ice vanishing more than twenty years. This deficiency of ocean ice has extensive ramifications for worldwide environment examples, natural life, and human networks living in the Cold.

To learn more about sea ice declining rate, refer:

https://brainly.com/question/3734286

#SPJ4

The complete question is:

every decade, the sea ice declines by 10 percent. if there were 6 million km2 of sea ice in the year 2000, how much would remain in 2020? group of answer choices are a. 7.85 b.4.86 c. 6.80 d. 3.67

how fast will the ball passes its equilibrium position each time? assume that friction may be neglected

Answers

If we know the mass of the ball, the spring constant, and the maximum displacement (or amplitude) of the ball from its equilibrium position, we can calculate the speed at which the ball passes through its equilibrium position each time.

The speed at which the ball passes its equilibrium position each time depends on the amplitude and period of its motion.

Assuming the ball is executing simple harmonic motion, the time period (T) of the motion can be calculated using the formula:

T = 2π√(m/k)

where m is the mass of the ball and k is the spring constant.

Once we know the time period of the motion, we can calculate the speed at which the ball passes through its equilibrium position using the formula:

v = A/T

where A is the amplitude of the motion.

If the amplitude of the motion is not given, we can assume that it is equal to the maximum displacement of the ball from its equilibrium position. For a mass-spring system, this maximum displacement is equal to the amplitude of the oscillation.

For such more question on equilibrium:

https://brainly.com/question/517289

#SPJ11

the measured nodal voltages are: find voltage and the current . 6.864 0.624 (within three significant digits) what is the power for the voltage and current source in watts?

Answers

The power for the voltage source is -6.5744 W and the power for the current source is 0.02424 W (both to three significant digits).

To find the voltage Vab, we can use the voltage divider rule, which states that the voltage across a resistor in a series circuit is proportional to its resistance. In this case, Vab is the voltage across R2 and R3 in series, so:

Vab = Vo * (R2 + R3) / (R1 + R2 + R3)

= 9.84 * (9 + 6) / (10 + 9 + 6)

= 4.608 V

To find the current Ij, we can use Kirchhoff's current law, which states that the total current flowing into a junction is equal to the total current flowing out of the junction. In this case, the current flowing into node b is equal to the current flowing out of node b, so:

Ij = (Vc - Vab) / R3

= (4.296 - 4.608) / 6

= -0.052 A

Note that the negative sign indicates that the current is flowing in the opposite direction of the assumed direction.

To find the power for the voltage and current source, we can use the formulas P = V * I and P = I^2 * R, respectively. For the voltage source, the power is:

Pvg = Va * (Vc - Va) / R1

= 16 * (4.296 - 16) / 10

= -6.5744 W

Note that the negative sign indicates that the power is being dissipated, rather than generated.

For the current source, the power is:

Pig = Ij^2 * R2 = (-0.052)^2 * 9 = 0.02424 W

To learn more about current source

https://brainly.com/question/14696285

#SPJ4

Complete question:

m mo Vs( R1 = 10 kN2 R2 =9 k12 R3 = 6 kN2 The measured nodal voltages are: Va = 16 V Vo = 9.84 V Vc = 4.296 V Find voltage Vab and the current 11. Vab = mA Ij = (within three significant digits) What is the power for the voltage and current source in watts? Pvg = Pig = (within three significant digits)

#4: A friend is wearing a pair of mirrored sunglasses whose convex surface has a focal length of (-20.0)cm. If your face is 40.0 cm from the sunglasses, how far behind the sunglasses is your image?

Answers

The image distance is negative, this means the image is formed behind the mirror, at a distance of 13.33 cm behind the sunglasses.

Since the sunglasses have a convex surface, we can use the mirror equation:

1/f = 1/do + 1/di

where f is the focal length of the mirror, do is the object distance (the distance between the object and the mirror), and di is the image distance (the distance between the mirror and the image).

In this case, f = -20.0 cm (since the mirror is convex), do = 40.0 cm (since your face is 40.0 cm from the sunglasses), and we want to find di.

Substituting these values into the mirror equation, we get:

1/(-20.0 cm) = 1/(40.0 cm) + 1/di

Simplifying this equation, we get:

-0.05 = 0.025 + 1/di

Subtracting 0.025 from both sides, we get:

-0.075 = 1/di

Dividing both sides by -0.075, we get:

di = -13.33 cm.

Learn more about convex here:

https://brainly.com/question/30557617

#SPJ1

the devices used by mechanical cooling thermostats to turn off early enough to prevent system overshoot or temperatures below the thermostat set point are called

Answers

The devices used by mechanical cooling thermostats to turn off early enough to prevent system overshoot or temperatures below the thermostat set point are called anticipators.

An anticipator is a small resistor that operates like a little heater inside your thermostat. The anticipator is the device that controls the duration of each heating cycle in old-style thermostats. This component essentially informs the heating and cooling system to cut off early. The mechanical thermostat anticipator is made up of two parts: the thermostat switch and the heat anticipator. When the thermostat switch turns off, the anticipator's heater stays on for a short period longer, avoiding overheating or undercooling of the controlled space.

learn more about thermostats   here:

https://brainly.com/question/22598217

#SPJ4

during a process, 5 kj of heat is added to a closed system, and the system does 2 kj of work on the surroundings. what is the change of the internal energy of the system? here, neglect change in the bulk energy

Answers

The change in the internal energy of the system can be calculated using the first law of thermodynamics, which states that the change in the internal energy of a system is equal to th added to the system minus the work done by the system on the surroundings.

The formula for this is:ΔU = Q - W where ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system on the surroundings. In this case, 5 kJ of heat is added to the system, and the system does 2 kJ of work on the surroundings. Therefore, the change in internal energy is:ΔU = Q - WΔU = 5 kJ - 2 kJΔU = 3 kJSo, the change in the internal energy of the system is 3 kJ.
The change in internal energy of the system can be calculated using the first law of thermodynamics: ΔU = Q - W, where ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system. In this case, Q = 5 kJ and W = 2 kJ.

So, ΔU = 5 kJ - 2 kJ = 3 kJ.

The change in the internal energy of the system is 3 kJ, considering we neglect the change in the bulk energy.

Learn more about internal energy here:

https://brainly.com/question/14668303

#SPJ4

do people weigh less near the equator because of the centrifugal force of the earth spinning? does the centrifugal force counteract gravity enough for even a marginal weight difference near the equator?

Answers

People do weigh less near the equator because of the centrifugal force of the earth spinning. Yes, The centrifugal force counteracts gravity enough for even a marginal weight difference near the equator.

This is because the equator is further away from the center of the earth than the poles.

As a result, people at the equator are moving faster than those at the poles due to the earth's rotation. This movement generates centrifugal force, which reduces the gravitational force acting on a person at the equator by about 0.3%.

Therefore, a person weighs about 0.5% less at the equator than at the poles.

For more such questions on centrifugal force, click on:

https://brainly.com/question/954979

#SPJ11

green light of wavelength 540 nm is incident on two slits that are separated by 0.50 mm. (a) make a list of physical quantities you can determine using this information and determine three of them. (b) describe three changes in the experiment that will each result in doubling the distance between the 0th and the first bright spot on the screen. explain.

Answers

Green light of wavelength 540 nm is incident on two slits that are separated by 0.50 mm can be determined various steps.

How can we describe Green light of wavelength?

(a) Physical quantities that can be determined using this information include:

Wavelength of the light (given as 540 nm)Distance between the slits (given as 0.50 mm)Distance from the slits to the screen (not given, but assumed to be known)

Three physical quantities that can be determined using this information are:

The spacing between bright fringes on the screenThe angle of diffraction of the lightThe location of the central bright fringe on the screen

(b)

Three changes that will each result in doubling the distance between the 0th and the first bright spot on the screen are:

Doubling the distance between the slits and the screen: The distance between the slits and the screen affects the spacing between bright fringes on the screen.

By doubling the distance between the slits and the screen, the spacing between bright fringes will be doubled.

Halving the distance between the slits: The distance between the slits affects the angle of diffraction of the light.

By halving the distance between the slits, the angle of diffraction will be doubled, resulting in the doubling of the distance between the 0th and the first bright spot on the screen.

Using light of half the wavelength: The wavelength of the light affects the spacing between bright fringes on the screen.

By using light of half the wavelength (i.e., 270 nm), the spacing between bright fringes will be halved, resulting in the doubling of the distance between the 0th and the first bright spot on the screen.

Learn more about Green light

brainly.com/question/1159962
#SPJ11

a child pushes a merry-go-round from rest to a final angular speed of 0.50 rev/s with constant angular acceleration. in doing so, the child pushes the merry go-round 2.0 revolutions. what is the angular acceleration of the merry-go-round?

Answers

The angular acceleration of the merry-go-round is 4 rad/s².

To find the angular acceleration of the merry-go-round, follow these steps:

1. Convert the final angular speed from rev/s to rad/s:
Final angular speed = 0.50 rev/s * 2π rad/rev = π rad/s

2. Convert the number of revolutions to radians:
Number of revolutions = 2.0 rev * 2π rad/rev = 4π rad

3. Use the angular displacement equation to find the angular acceleration:
θ = ω₀ * t + 0.5 * α * t^2, where θ is angular displacement, ω₀ is initial angular speed (0 in this case), α is angular acceleration, and t is time.

4. Use the final angular speed equation to find time:
ω = ω₀ + α * t, where ω is final angular speed, ω₀ is initial angular speed (0 in this case), α is angular acceleration, and t is time.

5. Rearrange the final angular speed equation to find time in terms of angular acceleration:
t = (ω - ω₀) / α = π / α

6. Substitute the time expression into the angular displacement equation:
4π = 0.5 * α * (π / α)^2

7. Solve for angular acceleration:
α = 4 rad/s²

Hence, the angular acceleration of the merry-go-round is 4 rad/s².

To know more about angular acceleration, refer here:

https://brainly.com/question/30238727#

#SPJ11

A plank is supported on flight of staircases.How
many forces are acting on the plank?
A 4
B 5
C 6
D 7

Answers

uhhhh i think 4 BUT it could be wrong
The correct answer is 6, because I just finished the exam

a 90-kg (including any equipment) skydiver drops out of a plane. using an air density of 1.0 kg/m3, a frontal surface area of 1.0 m2, and a drag coefficient of 0.8, what will the skydiver's terminal velocity be?

Answers

The terminal velocity of a 90-kg (including any equipment) skydiver who jumps out of a plane can be found using the given data: air density of 1.0 kg/m3, a frontal surface area of 1.0 m2, and a drag coefficient of 0.8.What is terminal velocity.

Terminal velocity is the maximum velocity that a falling object can reach when air resistance is equal to the gravitational force acting on it. This is the point at which an object can no longer accelerate because the opposing forces are balanced. Terminal velocity can be computed using the formula: v = √(2mg/ρACd)where: v is the terminal velocity m is the mass of the objectρ is the air density A is the frontal surface area Cd is the drag coefficient of the object g is the acceleration due to gravity(9.81 m/s²)Substituting the provided values: v = √(2(90 kg)(9.81 m/s²)/(1.0 kg/m³)(1.0 m²)(0.8)) = 72.22 m/s Therefore, the skydiver's terminal velocity is 72.22 m/s.

Learn more about here:

https://brainly.com/question/2654450

#SPJ4


a 50 kg ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.5 turns each second. the distance from one hand to the other is 1.50 m . biometric measurements indicate that each hand typically makes up about 1.25 % of body weight.what horizontal force must her wrist exert on her hand?

Answers

The horizontal force that her wrist must exert on her hand is 2,128 N.

How we determine horizontal force?

Consider the rotational motion of the ice skater and the forces acting on her body.

The centripetal force required to keep the ice skater moving in a circle is provided by the tension force in her arms.

We can use the following equation to find the tension force:

F = mω²r

where F is the tension force, m is the mass of the ice skater, ω is the angular velocity (in radians per second), and r is the radius of the circle formed by the outstretched arms (i.e., half the distance between the hands).

First, let's calculate the radius:

r = 1.50 m / 2

  = 0.75 m

Next, let's calculate the angular velocity:

ω = 2.5 turns/s x 2π radians/turn = 15.7 radians/s

Now, let's calculate the mass of the ice skater's hands:

m_hands = 0.0125 x 50 kg = 0.625 kg

Finally, let's use the equation above to find the tension force:

F = mω²r = (50 kg + 2 x 0.625 kg) x (15.7 radians/s)² x 0.75 m

= 2,128 N

Therefore, the horizontal force that her wrist must exert on her hand is 2,128 N.

Learn more about  horizontal force

brainly.com/question/2037071

#SPJ11

what current is required in a loop of wire with radius 0.035 m to generate a magnetic field of strength 24e-6 t at the center of the loop?

Answers

To generate a magnetic field of strength 24e-6 T at the center of the loop, a current of approximately 4.4 A is required in a loop of wire with a radius of 0.035 m.

The magnetic field generated by a current-carrying loop of wire depends on the current and the geometry of the loop. The magnetic field strength at the center of the loop is given by the formula B = μ₀I/(2r), where B is the magnetic field strength, μ₀ is the magnetic constant (equal to 4π x 10^-7 T m/A), I is current, and r is the radius of the loop. In this case, we are given the magnetic field strength B and the radius of the loop r, and we want to find the current I that will produce that field strength. Rearranging the formula, we get I = 2Br/μ₀. Plugging in the given values, we get I = 2 x 24e-6 T x 0.035 m / (4π x 10^-7 T m/A), which simplifies to 1.2 A. Therefore, a current of 1.2 A is required in the loop of wire to generate a magnetic field of strength 24e-6 T at the center of the loop.

Learn more about current here:

https://brainly.com/question/12791045

#SPJ11

You are driving your 1700 kg car at 18 m/s down a hill with a 5.0∘ slope when a deer suddenly jumps out onto the roadway. You slam on your brakes, skidding to a stop.
How far do you skid before stopping if the kinetic friction force between your tires and the road is 1.5×10^4 N?Solve this problem using conservation of energy.
Express your answer to two significant figures and include the appropriate units.

Answers

The distance the car skids before coming to a stop when driving down a hill with a slope of 5.0° at 18 m/s using conservation of energy is 19.84 meters.

What is conservation of energy?

Conservation of energy is the principle that the total energy of an isolated system cannot change. The energy can only be transformed from one form to another. The law of conservation of energy, also known as the first law of thermodynamics.


To determine how far you skid before stopping using conservation of energy, follow these steps:

Step 1: Calculate the initial kinetic energy of the car: [tex]KE_{initial} = (1/2) * 1700 kg * (18 m/s)^2 = 275400 J[/tex]

Step 2: Calculate the gravitational potential energy gained by the car [tex](PE_{gravity})[/tex]: firstly, to find h we need to express it in terms of the distance. h = distance * sin(angle)
So, [tex]PE_{gravity} = 1700 kg * 9.81 m/s^2 * distance * sin(5.0^\circ)[/tex]

Step 3: Calculate the work done by friction [tex](W_{friction})[/tex]: [tex]W_{friction} = 1.5 * 10^4 N * distance[/tex]

Step 4:  Apply conservation of energy: [tex]KE_{initial} + PE_{gravity} = W_{friction}[/tex], we get:
[tex]275400 J + (1700 kg * 9.81 m/s^2 * distance * sin(5.0^\circ)) = 1.5 * 10^4 N * distance[/tex]

Step 5: Solve for distance
[tex]distance * (1.5 * 10^4 N - 1700 kg * 9.81 m/s^2 * sin(5.0^\circ)) = 275400 J[/tex]
[tex]distance = 275400 J / (1.5 * 10^4 N - 1700 kg * 9.81 m/s^2 * sin(5.0^\circ))[/tex]


Using a calculator, the distance is approximately 19.84 meters. So, you skid about 19.84 meters before stopping.

To know more about conservation of energy , refer here

https://brainly.com/question/2137260#

#SPJ11

Other Questions
ricardo is an economist who believes that short-run changes in aggregate demand affect aggregate output as well as the price level. he believes that there is a role for monetary policy in managing the economy, but he advocates a simple monetary rule that would increase the money supply at a constant rate to grow the economy. ricardo is best described as a . a keynesian economist b new classical economist c rational expectations economist. d monetarist e supply-side economist Could someone help and make a Venice beach version of this? I NEED HELP ASAP!!!!!Refer to your Who Is Sonia Sotomayor? book for a complete version of this text.Part AWhat is a main idea of Chapter 9?1. Politicians doubt that Sonia will be a capable Supreme Court justice, so she must go through a special approval process.2. Sonias family worries that she will forget about her past once she is a Supreme Court justice.3. Sonia wants to become a Supreme Court justice so that she can meet popular politicians and performers from Puerto Rico.4. When she is chosen to serve as a U.S. Supreme Court justice, Sonia makes history.Part BWhich detail from the text best supports the answer to Part A?1. Even though she was about to become a Supreme Court justice, she didnt want to start acting differently.2. The president wanted to be sure Sonia didnt have any problems or ugly secrets in her past.3. Jennifer Lopez, the famous singer, also had a big party at her mansion on Long Island.4. She would be only the third woman, and first Hispanic, ever to sit on the court. An experiment consists of rolling two fair number cubes. The diagram shows the sample space of all equally likely outcomes. Find P(1 and 2). Express your answer as a fraction in simplest form. which type of underwriting arrangement is the riskiest to the underwriter? a. a best efforts agreement. b. a private placement. c. a firm commitment. d. a standby underwriting. GIVE ME THE ANSWERS TO MY SCIENCE PROJECT PLS!DirectionsNow that the lab is complete, it is time to write your lab report. The purpose of this guide is to help you write a clear and concise report that summarizes the lab you have just completed. The lab report is composed of two sections:Section I: Overview of Investigation Provide background information.Summarize the procedure.Section II: Observations and Conclusions Include any charts, tables, or drawings required by your teacher.Include answers to follow-up questions.Explain how the investigation could be improved.To help you write your lab report, you will first answer the four questions listed below based on the lab that you have just completed. Then you will use the answers to these questions to write the lab report that you will turn in to your teacher. You can upload your completed report with the upload tool in formats such as OpenOffice.org, Microsoft Word, or PDF. Alternatively, your teacher may ask you to turn in a paper copy of your report or use a web-based writing tool.QuestionsSection I: Overview of LabWhat is the purpose of the lab?What procedure did you use to complete the lab? Outline the steps of the procedure in full sentences.Section II: Observations and ConclusionsWhat charts, tables, or drawings would clearly show what you have learned in this lab?Each chart, table, or drawing should have the following items:An appropriate titleAppropriate labelsIf you could repeat the lab and make it better, what would you do differently and why?There are always ways that labs can be improved. Now that you are a veteran of this lab and have experience with the procedure, offer some advice to the next scientist about what you suggest and why. Your answer should be at least two to three sentences in length.Writing the Lab ReportNow you will use your answers from the four questions above to write your lab report. Follow the directions below.Section I: Overview of LabUse your answers from questions 1 and 2 (above) as the basis for the first section of your lab report. This section provides your reader with background information about why you conducted this lab and how it was completed. It should be one to two paragraphs in length.Section II: Observations and ConclusionsUse your answers from questions 3 and 4 (above) as the basis for the second section of your lab report. This section provides your reader with charts, tables, or drawings from the lab. You also need to incorporate your answers to the follow-up questions (from the Student Guide) in your conclusions.OverallWhen complete, the lab report should be read as a coherent whole. Make sure you connect different pieces with relevant transitions. Review for proper grammar, spelling, punctuation, formatting, and other conventions of organization and good writing. meen 260 students measured the length of a 10.00 mm standard specimen certified in iso (international standard organization) 25 times. the results are below, group sample mean [mm] sample deviation [mm] group a 10.00 0.51 group b 13.00 0.06 group c 12.00 0.55 group d 11.00 2.00 all students used the same vernier calipers with 0.01 mm resolution. which group has the largest uncertainty error in a 95% confidence level (assume t (95%) value is 2.0)? Which person will get more UV light, people with high pigmentation rather than low pigmentation on a cell? Which probability distribution table reflects the data shown in the bar graph?X yellow, red , orange, blue, green P 0.5 , 0.4, 0.3, 0.2, 0.1X yellow, red , orange, blue, green P 0.5, 0.5, 0.5, 0.5, 0.5X yellow, red , orange, blue, green P 0.1, 0.2, 0.3, 0.4, 0.5 X yellow, red , orange, blue, green P 0.2, 0.2, 0.2, 0.2, 0.2, Using the net below, find the surface areaof the triangular prism.8 cm6 cm4 cm4 cmSurface Area5 cm5 cm5 cm=8 cm[?] cmW Can someone give me the answers in order pleaseA car was valued at $44,000 in the year 1992. The value depreciated to $15,000 by the year 2006.A) What was the annual rate of change between 1992 and 2006?r=---------------Round the rate of decrease to 4 decimal places.B) What is the correct answer to part A written in percentage form?r=---------------%C) Assume that the car value continues to drop by the same percentage. What will the value be in the year 2009 ?value = $ -----------------Round to the nearest 50 dollars. snowcap industries may need to purchase a new snow scraper machine before the winter season for $275,000. the managerial accountant reported that the snow scraper machine has a useful life of 5 years and a residual value of $75,000. the annual depreciation expense of the machine is computed using the straight-line depreciation expense method. the net cash inflows the managerial accountant expects from the investment include: Four of the angles of a pentagon measure 85, 110, 135, and 95. Find the measure of the missing angle. PLEASE HELP!!!Read the introduction to Cicero's De Officils. Then respond to the question that follows.My dear son Marcus, you have now been studying a full year under Cratippus, and that too in Athens, and you should be fully equipped with the practicalprecepts and the principles of philosophy; so much at least one might expect from the pre-eminence not only of your teacher but also of the city; the former is able to enrich you with learning, the latter to supply you with models. Nevertheless, just as I for my own improvement have always combined Greek and Latin studies and I have done this not only in the study of philosophy but also in the practice of oratory-so I recommend that you should do the same, so that you may have equal command of both languages. And it is in this very direction that I have, if I mistake not, rendered a great service to our countrymen, so that not only those who are unacquainted with Greek literature but even the cultured consider that they have gained much both in oratorical power and in mental training.You will, therefore, learn from the foremost of present-day philosophers, and you will go on leaming as long as you wish; and your wish ought to continue aslong as you are not dissatisfied with the progress you are making. For all that, if you will read my philosophical books, you will be helped; my philosophy is not very different from that of the Peripatetics (for both they and I claim to be followers of Socrates and Plato). As to the conclusions you may reach, I leave that to your own judgment (for I would put no hindrance in your way), but by reading my philosophical writings you will be sure to render your mastery of theLatin language more complete. But I would by no means have you think that this is said boastfully. For there are many to whom I yield precedence in theknowledge of philosophy; but if I lay claim to the orator's peculiar ability to speak with propriety, clearness, elegance, I think my claim is in a measure justified,for I have spent my life in that profession.And therefore, my dear Cicero, I cordially recommend you to read carefully not only my orations but also these books of mine on philosophy, which are nowabout as extensive. For while the orations exhibit a more vigorous style, yet the unimpassioned, restrained style of my philosophical productions is also worth cultivating. Moreover, for the same man to succeed in both departments, both in the forensic style and in that of calm philosophic discussion has not, Iobserve, been the good fortune of any one of the Greeks so far, unless, perhaps, Demetrius of Phalerum can be reckoned in that number-a clever reasoner, indeed, and, though rather a spiritless orator, he is yet charming, so that you can recognize in him the disciple of Theophrastus. But let othersjudge how much I have accomplished in each pursuit; I have at least attempted both.In a paragraph of 5-7 sentences, identify Cicero's purpose for writing this passage and explain how textual evidence supports this purpose. This question has two parts. First, answer Part A. Then, answer Part B.Part AHow does the author support the claim that teens should exercise?by describing positive effects related to exerciseby comparing children to teens in terms of obesity ratesby listing examples of exercises appropriate for adolescentsby discussing problems with adolescents who watch televisionPart BWhich sentence from the passage best supports your answer in Part A?In recent years, a lot of health problems that doctors saw only in adults are now seen in young people. (paragraph 8)If you start good habits, like daily exercise, when you are young, you will be likely to continue them when youre older. (paragraph 9)New research shows that exercise during the teen years (beginning at age 12) can help protect girls from breast cancer when they are older. (paragraph 10)Leading a sedentary lifestyle can cause weight gain and even obesity (dangerously high weight), which can lead to type 2 diabetes, high cholesterol levels, and high blood pressure. (paragraph 11) your firm has just issued five-year floating-rate notes indexed to six-month u.s. dollar libor plus 1/4 percent. what is the amount of the first coupon payment your firm will pay per $1,000 of face value, if six-month libor is currently 8.1 percent? (round your answer to 2 decimal places.) Jackson started a savings account with $25. He plans to deposit $25 each month for the next 12 months, then continue those monthly deposits in the following years. The account earns interest at an annual rate of 4% compounded annually, based on his final yearly balance. What is the total amouny that Jackson will save at the end of 3 years? How much intresr will jackson have earned at the end of the 3 years? which one of the following requires the registration of mutual funds that engage in investing and trading in securities? group of answer choices the foreign corrupt practices act of 1977. the securities exchange act of 1934. the sarbanes-oxley act of 2002. the investment company act of 1940. the securities act of 1933. When a number is decreased by 40% of itself, the result is 54 . What is the number? Every nation in the world is striving to have progressive, peaceful, strong united country. This aspiration is expressed in different ways to motivate and encourage the people to support and actively participate in this endeavor. please i need it now