Answer:
Select the crown at the bottom of an answer where the speech bubble icon is.
In the first video for chapter 29, we looked at the emission spectrum of excited gases. In this video, we look at the __________ spectrum of colored filters
Although the video is not found here, the sentence makes reference to the transmission spectrum of colored filters.
What is the transmission spectrum?The transmission spectrum indicates the light portion having a given wavelength that can be passed through a filter.
This spectrum (transmission spectrum) depends on the physical separation of the particles that form the filter.
In conclusion, although the video is not found here, the sentence makes reference to the transmission spectrum of colored filters.
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19. The frequency of orange light is 5.01 x 10^14 Hz. How much energy does a photon of orange light carry? (h = 6.626 x 10-34 J·s; 1 eV = 1.60 x 10^-19 J)
3.32 eV
5.43 eV
2.07 eV
7.56 eV
The energy a photon of the orange light carries is 3.32 eV.
What is the energy of a photon?The energy possessed by the photon incident on a surface is the energy of the photon. It is denoted by [tex]E[/tex].
Energy is related to frequency as
[tex]E=h\nu[/tex]
where h is the plank's constant, [tex]h = 6.626 \times10^{-34} \; \rm Js[/tex]
[tex]\nu=5.01\times10^{14} \:\rm Hz[/tex]
Energy will be
[tex]E= 6.626 \times10^{-34} \times\55.01\times10^{14}\\E=\333.2\times10^{-20} \rm J[/tex]
Given,
[tex]1\rm eV = 1.60 \times 10^{-19} \rm J[/tex]
Energy in eV is
[tex]E=\frac{33.2\times10^{-20}}{ 1.60 \times 10^{-19} \rm J} \\E=3.32 \rm eV[/tex]
Therefore, the energy of the photon in eV is 3.32 eV.
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Hamish is studying what happens when he sends a sound wave through different mediums, and he records his data in a table. a 2-column table with 4 rows titled hamish's waves. the first column labeled wave has entries 1, 2, 3, 4. the second column labeled information has entries liquid, solid, gas, liquid. which statement could made about the data collected in hamish’s table? wave 1 will move the fastest. wave 2 will move the slowest. wave 3 will move the slowest. wave 4 will move the fastest.
Answer:
Wave3 = slowest
Explanation:
Wave 3 will move the slowest
in liqiud and solids the molecules are closer together so the waves propogate faster than in a gas
Make a prediction.
Which surface causes the most friction?
a) wood b) tile c) carpet
Your house is 45.0 m from a powerline carrying 152 A of current. How much magnetic field does the current create at your house?
?×10^? T
This question involves the concepts of th magnetic field and current.
The magnetic field created by the current at the house is "6.75 x 10⁻⁷ T".
Magnetic FieldThe magnetic field created by a current carrying wire can be given by the following formula:
[tex]B=\frac{\mu_o I}{2\pi r}[/tex]
where,
B = magnetic field = ?[tex]\mu_o[/tex]= permeabiliy of free space =4π x 10⁻⁷I = current = 152 Ar = distance = 45 m[tex]B=\frac{4\pi x\ 10^{-7}(152)}{2\pi(45)}[/tex]
B = 6.75 x 10⁻⁷ T
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hello people ~
64 drops each having the capacity C and potential V are combined to form a big drop. If the charge on the small drop is q, then the charge on the big drop will be
(a) 2q
(b) 4q
(c) 16q
(d) 64q
Answer:
64q
Explanation:
Note that
Charges are addaptive quantitiesHere
Capacitance C and potential V is given
We know
Q=CVSo charge is also same
Now
there are 64 drops so 64q charge
0.030 m3.
The balloon is compressed at a constant temperature causing the volume
decrease to 0.025 m3.
No helium leaves the balloon.
Calculate the new pressure in the balloon
Answer:
see below
Explanation:
P1V1 = P2V2
100 000 (.03) = x ( .025) x = 120 000 pa
If you drive an oscillator, it will have the largest amplitude if you drive it at its _______ frequency.
A tourist bus is carrying passengers from the bottom of a hill to the top. the people, the bus, and the luggage can be analyzed as a single . the total amount of energy in the system as the bus travels. this situation happens because some of the kinetic energy changes to energy because of friction between the tires and the road.
The friction between the tires and the road causes loss of energy in the form of heat-energy.
What is kinetic energy?The term kinetic energy refers to the energy of an object that is in motion. The pasengers that are sitting at a point possess potential energy. If the bus stops suddenly, the potential energy of the passengers is converted to kinetic energy as they move forward.
Since friction causes loss of energy, the friction between the tires and the road causes looss of energy in the form of heat-energy.
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A bowling ball with a mass of 9kg is thrown down a lane with a constant speed of 3 m/s. The ball hits the 1.5kg pin, initially at rest, at the end of the lane. After the collision the pin moves with a speed of 5 m/s. How fast is the ball moving after the impact?
Answer:
M1 V1 = M1 V2 + M2 V3 conservation of momentum
V2 = (M1 V1 - M2 V3) / M1 where V2 = speed of M1 after impact
V2 = (3 * 9 - 1.5 * 5) / 9 = (27 - 7.5) / 9 = 2.17 m/s
Note: All speeds are in the same direction and have the same sign
When a quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate, the result must be within what amount of the control panel setting
When a quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate, the result must be within what amount of the control panel setting will be ±4 kVp.
What is quality control?
Quality control entails testing units to see if they meet the standards for the final product.
The goal of the testing is to evaluate whether any corrective measures are required in the production process. Good quality control assists businesses in meeting customer needs for improved products.
When a quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate. The results must be under some limits.
Hence the result must be within what amount of the control panel setting will be ±4 kVp.
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would a sphere shaped eraser bounce
A crate is attracted toward the center of the earth by a gravitational force of 500 N. The force with which the earth is attracted toward the crate is:
Answer:
500 N - For every action there is an opposite and equal reaction.
The dimensions of the disk of our milky way galaxy are:.
Answer:
According to studies, the milky way is approximately, "170,000–200,000 light-years (52–61 kpc) in diameter and, on average, approximately 1,000 ly (0.3 kpc) thick."
With that being said, it is safe to say that the dimensions are somewhere around 100,000 by 1,000
an air track car with a mass off 0.25 kg and velocity of 3.4 m/s to the right collides and couples with a 0.45 kg car moving to the left with a velocity of 3.9 m/s. what is the combined velocity of the cars just after the collision?
Answer:
Two objects are moving in opposite direction on a straight line. After collision, they stick together and move with common velocity
The total momentum of a colliding system is constant always. Therefore, by using this concept, the final velocity of the coupled mass will be 3.7 m/s.
What is momentum ?Momentum of an object is the ability of an object to bring the force applied to make a maximum displacement. It is the product of its mass and velocity. Momentum is a vector quantity. It have both magnitude and direction.
The momentum in a collision is conserved. Thus total initial momentum is equal to the final momentum. Let m1 and m2 be the colliding masses and the u and v be the initial and final velocity.
Then, m1 u1 + m2u2 = (m1 + m2)v for a coupled mass after collision.
then final velocity v = ( m1 u1 + m2u2 )/ (m1 + m2)
Apply the given values in the equation as follows:
v = (0.25 kg ×3.4m/s + 0.45 kg× 3.9 m/s)) (0.45 + 0.25) = 3.7 m/s
Therefore, the final velocity of the coupled masses after collision is 3.7 m/s.
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Describe the relationship between current, voltage difference and resistance in a circuit.
Answer:
see below
Explanation:
voltage = current * resistance
What is the power of a toaster if it can perform 3500 j of work In 3 minutes
Answer:
Around 20 watts, or 19.4W exactly
Explanation:
to calculate the power in a time frame you use
Joules/Time(Seconds) = W (your power)
So, we take 3500 joules / 3min (180sec)
3500/180 = 19.4W, if your question asks you to round up/down, round up to 20W of power! good luck!
Using a material that is ‘Ohmic’ (it follows Ohm’s Law), you make a circuit using wire, a battery, and a resistor. After measuring V, I, and R across the circuit, you switch out the original resistor with one 3 times more resistive. When you measure V, I, and R again, how will the new values compare to the old?
When the original resistor is replaced with 3 times more resistive material, the resistance of the circuit increases by factor of 3 and the current flowing in the cirucit decreases by a factor 3.
Ohm's law
Ohm's law states that, the current flowing in a conductor is directly proportional to the potential across the conductor.
V = IR
where;
I is the current in the circuitV is voltageR is the resistanceWhen the resistance increases, the current flowing in the circuit decreases.
When the original resistor is replaced with 3 times more resistive material, the resistance of the circuit increases by factor of 3 and the current flowing in the cirucit decreases by a factor 3.
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Why do we think that ring particles must be replenished over time? where we think ring particles come from? choose the correct statement.
Answer:
Because collisions are constantly occurring within the ring systems, ring particles are continually being ground down to dust.
Explanation:
A fuel injection system that does not use a sensor to measure the amount (or mass) of air entering the engine is usually called a(n) ________ type of system
A fuel injection system that does not use a sensor to measure the amount (or mass) of air entering the engine is usually called speed density type of system.
What is speed density fuel injection system?Speed density fuel injection system is a fuel delivery method.
This system relies on a combination of sensor and an intake air temperature sensor to measure the amount (or mass) of air entering the engine.
Thus, a fuel injection system that does not use a sensor to measure the amount (or mass) of air entering the engine is usually called speed density type of system.
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Hello people ~
The capacitance of a capacitor will decrease if we introduce a slab of:
(a) copper
(b) aluminium
(c) zinc
(d) None of these
Answer:
Copper
Explanation:
Capacitance is directly proportional to dielectric constant
Aluminium and zinc are highly reactive and have high dielectric contact.
Copper has less dielectric constant hence capacitance will decrease
In which substance will light move slowest?
Answer:
light travels slowest in diamond
Explanation:
The higher the index of refraction is, the slower the speed of light is. The indexes of refraction for diamond, air, and glass are, respectively, 2.42, 1.00, and approximately 1.50, depending upon the composition of the glass. Light travels slowest in diamonds.
The planets that orbit the sun are large enough that their gravity produces a
________ shape.
Answer:
a round shape. It has its own gravity to pull itself into a round shape
When astronauts aboard the space shuttle look down at the earth, its atmosphere appears blue. Why?.
Answer:
Reflection
Explanation:
The particles in the atmosphere only reflect the color blue and and all others are absorbed. Only the reflected colors can be seen from our eyes not the absorbed ones
A circuit carries a current of 0.64 A when there is a resistance of 50.0 Ω. The voltage applied to the circuit, to the nearest whole number, is ___ V.
Answer:
32v
Explanation:
edge 2023
I know this ain't right but can someone please correct the mistakes I have it for a test
Answer:
NICE HANDWRITING. I've done this before and I'm sure everything is correct. Although I would re-check to see if you had any mistakes with your calculations. Good job!
Explanation:
What does FITT stand for?
Food, Ice cream, Teeth, Toes
Frequency, Ice cream, Time, Teeth
Food, Intensity, Toes, Type
Frequency, Intensity, Time, Type
Answer:Frequency, Intensity, Time, Type
Explanation: frequency, intensity, time, and type is one way to remember the general guidelines for what should be included in a fitness plan.
Jasmine makes a note card about series circuits. she records the points shown. a 2 column table with 1 row. the column on the left is labeled advantages with entries (1) they are simple to design and build. the second column is labeled disadvantages with entries (2) each source of current used adds more current to the circuit, (3) the more bulbs are added the dimmer the bulbs are, (4) if one bulb goes out they all go out. which change will correct the error on her note card? switching the headings on the columns adding the title parallel circuits moving point (2) into the advantages column moving point (4) into the advantages column
Jasmine need to correct the error by switching the headings on the columns adding the title parallel circuits.
What is a parallel circuit?A parallel circuit is a circuit in which the components are connected to a common junction. This implies that if one bulb goes out in a parallel connection, all the bulbs will go out.
As such, Jasmine need to correct the error by switching the headings on the columns adding the title parallel circuits.
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Energy is transferred in an electrical circuit through.
Answer:
Poynting field
Explanation:
magnetic field of currents named the Poynting field, chosen following in position or time the 19th of one hundred years English researcher John Poynting.
A mass on the end of a spring undergoes simple harmonic motion. At the instant when the mass is at its equilibrium position, what is its instantaneous velocity?.
Answer:
V = ω A sin ω t can be used to describe SHM
When sin ω t = 1 (the maximum value possible)
V = ω A at equilibrium sin ω t = 1