The electric field on the axis of the uniformly charged ring at the center of the ring at 5.00cm is 2.41×〖10〗^7 N/C
Where a positive charge (q) is given, always note that the charges point away from the electric field. The expression used to calculate the electric field away from the center of the ring is given by the equation below,
E=(K_e×b)/(r^3×Q)
Where
E is Electric field
Ke is electric field constant
a is radius of the charge q from the center of the circle
Q is electric charge = 75.0μC
The radius of the charge is a = 10cm= 0.1m
Distance from the electric field = 5cm = 0.05m
Ke is a constant given as 8.99×〖10〗^(9 ) Nm^2/c^2
E=(8.99×〖10〗^(9 ) Nm^2/c^2×0.05)/(〖0.1〗^3×75×〖10〗^(-6) )
E=2.41×〖10〗^7N/C
Therefore, the electric field away from the center of the ring is 2.41×〖10〗^7N/C away from the center of the ring
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A nonconducting sphere has mass 80.0 g and radius 20.0cm . A flat, compact coil of wire with five turns is wrapped tightly around it, with each turn concentric with the sphere. The sphere is placed on an inclined plane that slopes downward to the left (Fig. P29.65), making an angle Ф with the horizontal so that the coil is parallel to the inclined plane. A uniform magnetic field of 0.35T vertically upward exists in the region of the sphere.(a) What current in the coil will enable the sphere to rest in equilibrium on the inclined plane?
The current in the coil that will enable the sphere to rest in equilibrium on the inclined plane is 0.7A.
What is equilibrium?According to classical physics, a particle is in mechanical equilibrium if there is no net force acting on it. By extension, if there is no net force acting on any of a physical system's component pieces, it is said to be in mechanical equilibrium.
In addition to the definition of mechanical equilibrium in terms of force, there are numerous other formulations that are all mathematically equal. When all of the components' velocities are constant, a system is said to be in equilibrium in terms of momentum. The system is in equilibrium in terms of velocity if velocity is constant. The object's angular momentum is conserved and there is no net torque in a rotational mechanical equilibrium.
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A long solenoid with closely spaced turns carries electric current. Does each turn of wire exert (a) an attractive force on the next adjacent turn, (b) a repulsive force on the next adjacent turn, (c) zero force on the next adjacent turn, or (d) either an attractive or a repulsive force on the next turn, depending on the direction of current in the solenoid?
An attractive force on the next adjacent turn of wire exerted.
A long solenoid with closely spaced turns carries electric current, then the force does each turn of wire exert on the next adjacent turn is attarctive.
By combining a solenoid and a bar magnet, an electric current is generated. Which adjustments will result in a reduction in the amount of electric current generated?When a solenoid and a bar magnet are used to create an electric current, the amount of wire loops in the solenoid that are used to create the current decreases. Magnetic field of solenoid depends on the number of coils present in the solenoid and the amount of current flowing from the coil.
If we increases the number of coils present in the solenoid then the electric current is also increases.Fewer no. of loops on the solenoid decreases the amount of electric current present in that coil.Using a stronger magnet near the solenoid also increases the strength of the electric current, as of the induced magnetic field.Moving a solenoid instead of magnet inside the loop, is also increases the electric current.And moving of magnet near and far away from the solenoid fastly or slowly also increases the electric current, due to electro magnetic induction.To know more about solenoid , visit :
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if you had to explain science to a fifth grader, what would you say?
Answer: It is the study of the environment and objects around us and how they interact with each other. It is a systematic study that involves collecting information, observing,and experimentation.
Explanation:
Newton's fist law is just about what happens if no force is applied.
O True
O False
Answer:
True
Explanation:
Answer:TRUE
Explanation:
What fitness industry is among the easiest to avoid
The fitness industry that is among the easiest to avoid for people who want to get and stay fit is the industry of losing weight.
This is because fitness training includes anything from cardiovascular exercises, like running, jogging, etc to strength training like bench presses, deadlifts, squats, etc.
However, when it comes to losing weight, this involves a variety of exercises and this can be difficult and takes time, hence, people tend to avoid it.
What is Fitness?This refers to the process of working out or engaging in exercises in order to be in a healthy state and well-being.
Hence, we can see that The fitness industry that is among the easiest to avoid for people who want to get and stay fit is the industry of losing weight.
This is because fitness training includes anything from cardiovascular exercises, like running, jogging, etc to strength training like bench presses, deadlifts, squats, etc.
However, when it comes to losing weight, this involves a variety of exercises and this can be difficult and takes time, hence, people tend to avoid it.
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an exhaust fan keeps a room’s pressure at a vacuum pressure of 10 inch of water. what is the net force on the room door to the hallway. the door size is 8 ft by 3 ft.
The net force on the room door to the hallway. the door size is 8 ft by 3 ft due to an exhaust fan keeps a room’s pressure at a vacuum pressure of 10 inch of water is 5.554 Newton approximately.
The pressure(P) on the object is the amount of force applied per unit area.
Mathematically, the force(F) can be written in terms of pressure and area(A) as:
F = PA
Here the given data is:
A = [tex]8\ ft\times 3\ ft[/tex]
= [tex]2.4384\times 0.9144 \ m^2[/tex]
P = [tex]10\ \text{inch of water}[/tex]
= [tex]0.254 \times 9.80638 \ Pa[/tex]
Therefore the force can be written as:
F = [tex]0.254 \times 9.80638 \times 2.4384\times 0.9144[/tex]
[tex]\approx 5.554 \ N[/tex]
Hence, the Net force is 5.554 Newton approximately.
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The temperature of a silver bar rises by 10.0°C when it absorbs 1.23 kJ of energy by heat. The mass of the bar is 525g . Determine the specific heat of silver from these data.
Halley’s comet has a perihelion distance of 0. 6 au and an orbital period of 76 years. What is the aphelion distance of halley’s comet from the sun?.
The Hailey's comet aphelion distance from the sun is 36 A. U.
The Hailey's comet perihelion distance = 0.6 amu
The Hailey's comet orbital period = 76 years
According to Kepler's law,
The time duration is T.
T = 76 years.
The semi-major axis is a.
The semi-major axis of Hailey's comet is,
[tex]T ^{2} =a ^{3} [/tex]
[tex]a = \sqrt[3]{(T) ^{2} }[/tex]
[tex]a = \sqrt[3]{(76) ^{2} }[/tex]
= 18 A. U
The semi-major axis of Hailey's comet is 18 A. U.
The Hailey's comet aphelion distance from the sun is,
= 2 × a
= 2 × 18
= 36 A. U
Therefore, Hailey's comet aphelion distance from the sun is 36 Astronomical Units.
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In December 2020, SpaceX Falcon 9 was launched into orbit at the Kennedy Space Center in Cape Canaveral. Explain how Newton's three laws are at work when the SpaceX Falcon 9 was launched into orbit? (Use 5 sentences, 50 points, mark brainliest.)
Answer:
It is the only commercial rocket to ever launch humans to orbit. On 24 January 2021, Falcon 9 set a record for the most satellites launched by a single rocket, carrying 143 into orbit.
...
Falcon 9.
Size
Burn time FT: 162 seconds v1.1: 180 seconds v1.0: 170 seconds
Propellant LOX / RP-1
WHAT IS THE interelationship between environment and mineral
Minerals are non–renewable natural resources that are vital for the construction, manufacturing and energy industries. The aim of sustainable mineral development is to ensure mineral use is kept to a minimum amount without having a negative impact on economic growth. This is achieved by efficient use of minerals as well as recycling and the use of alternative materials.
Also, it is important that the natural environment is protected from damage that may be caused by mineral extraction. This will help maintain biodiversity and ensure that contamination is not a problem for future generations. Mineral planning at local, regional, national and EU level ensures the environment is protected and that resources are used sustainably. Recycling, reuse, and conservation of energy and mineral resources are important in achieving these goals.
instantaneous power output of a single phase 60 hz generator will be constant under following condition:
Instantaneous power output of a single phase 60 hz generator will be constant under reactive power.
What is reactive power?Responsive power is otherwise called: ghost power. One more method for making sense of this is that responsive power is the resultant power in watts of an air conditioner circuit when the ongoing waveform is out of stage with the waveform of the voltage, normally by 90 degrees assuming the heap is simply receptive and is the consequence of either capacitive or inductive burdens. A model is fueling a brilliant light, in a responsive burden energy stream toward the heap a fraction of the time, though in the other half power streams from it, which gives the deception that the heap isn't dispersing or consuming power. Receptive power is one of the three kinds of force present in stacked circuits.
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Jasmine is driving a car and has a mass of 60 kg. Laura is her passenger and has a mass of 90 kg. Jasmine suddenly brakes to avoid hitting a deer. Who experiences the greatest force due to the seatbelt?
Jasmine. She has the least mass.
Laura. She has the greatest mass.
Laura. She has the greatest speed.
Jasmine. She has the least speed.
Two types of spiral galaxies exist. A normal spiral galaxy is one kind. Which phrase best describes the second type of spiral galaxy?.
The option 4 best describes the second type of spiral galaxy.
In a spiral galaxy, the revolving disc is surrounded by spiral 'arms' that extend outward from a compact center area. With yellowish bulges in the middle, spiral galaxies look as flat, blue-white disks of stars, gas, and dust.
These galaxies are classified into two types: regular spirals and barred spirals.
Regular spiral galaxies have a complicated structure: a large central bulge at the center of a revolving disc with a spiral structure that originates at the bulge. Spiral galaxies are encircled by sparsely populated halos, which are approximately spherical areas above and below the plane of the discs. In contrast to regular spiral galaxies, barred spirals have arms that link to the two ends of a straight bar of stars that has a nucleus at its center.
Thus, option 4 best describes the second type of spiral galaxy.
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Two types of spiral galaxies exist. A normal spiral galaxy is one kind. Which phrase best describes the second type of spiral galaxy?
is football-shapedis irregularly shapedhas arms that start close to the centerhas a bar through the middle from which arms extendAbigail is pushing a reluctant goat through a gate. She does 800 J of work and it takes her 4 seconds. Calculate the power Abigail generates.
A goat that is being pushed by Abigail through a gate. It takes her 4 seconds and 800 J of work.
The amount of electricity Abigail produces Identity foreclosure on identity
Identity foreclosure, or having an identity but only having ideas and characteristics they have just absorbed from their parents, friends, or group, is a characteristic of adolescence. In addition to having a distinct identity and being prone to discovering it,
Identity foreclosure young individuals in this age group also have a propensity to be influenced by a variety of factors, most notably their families and environments.
In other words, young individuals at this age are still not open to explore new possibilities and concepts; instead, they are following established norms.
Combining the urgent need to delve into one's own identity with
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(b) At what speed does the classical kinetic energy underestimate the experimental value by 1 % ? (c) By 5 %? (d) By 50 % ?
(b) The classical kinetic energy underestimates the experimental value by 1% at speed u = 0.115c.
(c) The classical kinetic energy underestimates the experimental value by 5% at speed u = 0.257c.
(d) The classical kinetic energy underestimates the experimental value by 50% at speed u = 0.786c.
Kinetic energy, which may be seen in the movement of an object, particle, or group of particles, is the energy of motion.
The classical kinetic energy is given as:
K(c) = (1/2)mu² = (1/2)mc²(u/c)² = (4.5 × 10 ¹⁶) (u/c)²
The actual kinetic energy of the object is given as:
K(r) = [ (1 /(√1-(u/c)²) - 1]mc² = ( 9 × 10⁶)[ (1 /(√1-(u/c)²) - 1]
(b) The speed at which the classical kinetic energy underestimates the experimental value by 1% is:
K(c) = 0.99K(r)
When (1/2) (u/c)² = 0.990 [ (1 /(√1-(u/c)²) - 1]
Solving this we get,
u = 0.115c
(c) Similarly energy underestimates experiment value by 5% :
K(c) = 0.950K(r)
When u = 0.257c
(d) Energy underestimates experiment value by 50% :
Then,
K(c) = 0.500 K(r) when the speed is u = 0.786c
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(b) What If? If this conductor is reshaped to form a circular loop and carries the same current, what is the value of the magnetic field at the center?
given l=0.44m ,I=8.8A
a)the magnetic field produced by each side of square is given by
B =(μ₀I/4πa)(sinθ₁-sinθ₂)
where θ₁=45° ,θ₂=-45° and a=l/2
each side produces a field into the page .the four sides altogether produce
B₍center₎=4B =4(μ₀I/4πa)(sinθ₁-sinθ₂) =(μ₀I/π(l/2))(sin45-sin45)
B ₍center₎ =(2√2μ₀I/π1)
B ₍center₎ =2√2*4π*10⁻⁷*8.8/π*0.44 =2.26*10⁻⁵T or 22.6μT into the page
b)now the conductor is reshaped into single turn circular coil.
for single turn circular coil 41=2πR =>R=21/π
B =μ₀I/2R =μ₀I/2(21/π) =μ₀πI/41
B =4π*10⁻⁷*π*8.8/4*0.44 =1.974*10⁻⁵T or 19.74μT.
What is conductor?A conductor permits current to pass through it effortlessly. On the surface of conductors, there is an electric charge.
When held in a magnetic field, conductors do not retain energy. Electrons make up the current. In contrast, an insulator blocks the flow of electricity via it.
Conductors are classified into four types: excellent conductors, semiconductors, resistors, and non-conductors.
Metals, aqueous salt solutions (ionic chemicals dissolved in water), graphite, and the human body are all examples of conductors.
Most metals are thought to be good electrical current conductors. Copper is simply one of the most common materials used in conductors. Silver, gold, and aluminum are other materials that are occasionally employed as conductors.
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What happens to the interference pattern that results from the diffraction of electrons passing through two closely spaced slits if the rate of electrons going through the slits is decreased to one electron per hour?.
The interference pattern remains unchanged when the diffraction of electrons passing through two closely spaced slits if the rate of electrons going through the slits is decreased to one electron per hour.
Interference pattern is the overall pattern that results when two or more waves cancel each other, generally showing areas of constructive and destructive interference
When one electron interferes with itself, it creates an interference pattern. According to the quantum mechanical theory, the electron simultaneously occupies two different states and simultaneously passes through two different slits at the same time which causes interference. Therefore, the interference pattern is going to be same, even if the rate of electrons going through the slits is decreased.
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A driver travels northbound on a highway at a speed of 25.0v m/s. A police car, traveling southbound at a speed of 40.0 m/s , approaches with its siren producing sound at a frequency of 2500 Hz. (a) What frequency does the driver observe as the police car approaches?
The driver observes as the police car approaches [tex]f^{\prime}=3036 \mathrm{~Hz}[/tex]
An observer traveling at speed is a driver [tex]v_O=25.0 \frac{\mathrm{m}}{\mathrm{s}}[/tex] and the source is the swiftly moving police vehicle [tex]v_S=40.0 \frac{\mathrm{m}}{\mathrm{s}}[/tex].The frequency of the sound that the source emits is [tex]f=2500Hz[/tex] The speed of the sound is [tex]v=343 \frac{\mathrm{m}}{\mathrm{s}}[/tex].
(a) The source and the observer approach one another. Then, we apply [tex]13.30[/tex]
[tex]f^{\prime}=f \frac{v+v_O}{v-v_S}[/tex]substituting numerical numbers for the positive values of [tex]V_O[/tex] and [tex]V_S[/tex]
[tex]\begin{gathered}f^{\prime}=f=2500 \mathrm{~Hz} \times \frac{343 \frac{\mathrm{m}}{\mathrm{s}}+25.0 \frac{\mathrm{m}}{\mathrm{s}}}{343 \frac{\mathrm{m}}{\mathrm{s}}-40.0 \frac{\mathrm{m}}{\mathrm{s}}} \\f^{\prime}=3036 \mathrm{~Hz}\end{gathered}[/tex]
Hence, the driver observes as the police car approaches [tex]3036 Hz[/tex] is the frequency.
Explain reason for this observation?When a wave source is moving relative to an observer, the Doppler effect or Doppler shift is a phenomenon that can be seen. A typical physical illustration of the Doppler Effect is when an ambulance crosses you while its siren is on. Let's take a closer look at the Doppler effect's nuances.
The Doppler effect is a significant phenomenon in planetary science and other scientific fields. The frequency of any sound or light wave produced by a moving source with regard to an observer is said to fluctuate as a result of the Doppler effect or Doppler shift.
A source's waves are compressed as they move in the direction of the observer. In contrast, waves from a source that is moving away from the observer become longer.
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Explain why two parallel wires carrying currents in opposite directions repel each other.
As in a series circuit, if you have two parallel wires with current flowing in opposite directions, the magnetic fields of the two wires will be moving in the same direction at the point of intersection and will repel one another.
What function does parallel wiring provide in an electrical circuit?In a parallel circuit, the branches divide the current so that only a portion of it passes through each branch. In a parallel circuit, each branch has the same voltage or potential difference, but the currents may differ. For instance, in a residential electrical circuit, the same voltage is provided across each lamp and appliance, but depending on their power requirements, each load draws a varied amount of current. A group of comparable batteries connected in parallel can produce more current than a single battery while maintaining the same voltage.
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identify the statement that is true about the big bang. a. it began with all matter and energy concentrated in an infinitesimally small point. b. the big bang theory states that at the instant of explosion, atoms of all major elements came into existence. c. it is the explanation for how our solar system developed. d. it occurred less than 13 million years ago.
The big bang theory states that at the instant of explosion, atoms of all major elements came into existence.
What is explosion?
A blast is a fast development in volume related with a very energetic outward arrival of energy, normally with the age of high temperatures and arrival of high-pressure gases. A blast is an unexpected, vicious difference in likely energy to work, which moves to its environmental factors as a quickly moving ascent in pressure called an impact wave or shock wave. The shock wave can cause significant harm. A blast is an unexpected, rough difference in likely energy to work, which moves to its environmental elements as a quickly moving ascent in pressure called an impact wave or shock wave.
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Raquel says, “I just saw an ad that has my favorite song and my favorite colors. It’s for the new theme park in town. I love theme parks.” A businessperson would say that this ad accurately _____ Raquel.
A.
challenges
B.
applies
C.
targets
D.
networks
Answer:
C. Targets
Explanation:
Because the Ad for the theme park effectively caught Raquel's attention, a businessperson would say that the ad accurately targeted Raquel. Marketers use specific colors, themes, designs, songs, etc to target a specific audience.
A wrecking ball has a mass of 650 kg. it swings from a cable that is 21 m long. the centripetal force on the ball is 56 n. what is the tangential speed of the wrecking ball? 1.3 m/s 1.8 m/s 46 m/s 870 m/s
By using centripetal force, the tangential speed is 1.35 m/s.
We need to know about centripetal force to solve this problem. The centripetal force is a force caused by moving objects in a circular motion. The magnitude of the centripetal force depends on tangential speed, mass and radius. It can be written as
Fc = m . v² / r
where Fc is the centripetal force, m is mass, v is tangential speed and r is the radius.
From the question above, we know that
m = 650 kg
r = 21 m
Fc = 56 N
By substituting the given parameters, we get
Fc = m . v² / r
56 = 650 . v² / 21
v² = 1.81
v = 1.35 m/s
Hence, the tangential speed is 1.35 m/s.
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Answer:
A. 1.3 m/s
Explanation:
Person above is correct!
Attached these other pictures just incase. : )
For the last picture its is:
✔ V
✔ W
✔ Y
Which structural damage could be expected if a Category 3 hurricane is predicted to hit an area?(1 point)
Well-built framed homes could sustain severe damage, with loss of most of the roof structure and some exterior walls.
Well-constructed frame homes could have damage to the roof, shingles, vinyl siding, and gutters.
A high percentage of framed homes could be destroyed, with total roof failure and wall collapse.
Well-built framed homes could incur major damage or removal of roof decking and gable ends.
The structural damage which could be expected if a Category 3 hurricane which is predicted to hit an area is high percentage of framed homes could be destroyed, with total roof failure and wall collapse and is denoted as option C.
What is Hurricane?This refers to the rapidly rotating storm which has a low-pressure center and is characterized by strong winds ad thunderstorms and of different types such as category 1 to 3.
Category 3 hurricane leads to loss of lives and properties which is depicted as framed homes being destroyed with total roof failure and wall collapse which is why option C was chosen.
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if a ball is thrown straight up into the air with an initial velocity of 8080 ft/s, its height in feet after tt second is given by y
The average velocity for the time period beginning when t=1 and lasting
(i) 0.01 seconds = 63.84 ft/s
(ii) 0.001 seconds = 63.984 ft/s
Given that a ball is thrown with an initial velocity = 80 ft/s
Let 'y' be the height in feet after 't' seconds.
Given, [tex]y=80t-16t^2[/tex] gives the height in 't' seconds.
Average velocity = Rate of change of distance
= Change in distance/Change in time.
The initial time can be taken as 0 s.
When t =1 s, y = 80 - 16 = 64 ft
(1) t = 0.01 s
y = 80 x 0.01 - 16 x 0.01 x 0.01 = 0.7984 ft
Average velocity = (64 - 0.7984) / (1 -0.01) = 63.84 ft/s
(2) t = 0.001 s
y = 80 x 0.001 - 16 x 0.001 x 0.001 = 0.079984 ft
Average velocity = (64 - 0.079984) / (1 -0.001) = 63.984 ft/s
The question is incomplete. Find out the complete question below:
If a ball is thrown straight up into the air with an initial velocity of 80 ft/s, it height in feet after t second is given by [tex]y=80t-16t^2[/tex] .Find the average velocity for the time period beginning when t=1 and lasting
(i) 0.01 seconds
(ii) 0.001 seconds
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how will the gravitational force between the moon and a spacecraft change as the spacecraft nears the moon? it will increase. it will increase. it will repel the spacecraft. it will repel the spacecraft. it will decrease. it will decrease. it will remain the same.
As the spacecraft nears the moon, its gravity will increase.
This is because the gravitational force between objects is inversely proportional to their distances from each other.
The gravitational force between a spacecraft and moon will also increase as they get closer together due to tidal forces. Tidal forces are caused by differences in water levels at either side of an object and are strongest when two objects are close together (i.e., when they're orbiting).
Therefore, When a spacecraft is close to the moon, the gravitational force between it and the moon will increase.
What does the term "tidal force" mean?Tidal forces are the outward pushing and pulling of water caused by the gravitational pull exerted on seawater by a larger body. They play an important role in coastal dynamics, including wave formation, erosion, and sedimentation.To learn more about tidal force, visit:
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a college student rests a backpack upon his shoulder. the pack is suspended motionless by one strap from one shoulder.
The student's shoulder supports the weight of the bag.
What is the free body diagram?Free-body diagrams are utilized to display the relative direction and strength of all forces that are being applied to an item in a certain scenario. A unique illustration of the geometric diagrams that were covered in a previous lesson is the free-body diagram. We will make use of these graphics throughout the entire study of physics.
A university student is carrying a backpack. One strap is hanging the rucksack immobile from one shoulder.
The weight of the backpack is balanced by the shoulder of the student.
The free-body diagram is attached below.
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Doug rides a motorcycle at an average speed of 42 miles per hour for 3.6 hours
The distance Doug travelled is 151.2 miles
What is speed?Speed is the distance travelled per unit. Mathematically, it can be expressed as:
Speed = distance / time
With the above formula, we can determine the distance. Details below
Data obtained from the questionFrom the question given above, the following data were obtained:
Speed = 42 miles per hourTime = 3.6 hoursDistance =? How to determine the distanceThe distance Doug travelled can be obtained as follow:
Speed = Distance / time
Cross multiply
Distance = speed × time
Distance = 42 × 3.6
Distance = 151.2 miles
Thus, the distance he travelled is 151.2 miles
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Complete question:
Doug rides a motorcycle at an average speed of 42 miles per hour for 3.6 hours. What is the distance he travels in miles?
hich of the following is a pointing device that can be useful if you have very limited space on your desk?
Common pointing devices used to control screen movement include computer mouse, touch pads, touch screens, graphics tablets, and trackballs. Some of these devices, such as mic and joysticks, can be added to the computer system according to your needs.
Pointing device is a general term for any device used to control cursor movement on a computer screen.
For desktop computers, the most common pointing device is the computer mouse. A touchpad is the most common pointing device on laptop computers. Finally, the most common pointing device on smartphones and tablets is the finger on the touchscreen.
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An ion rocket engine produces 1 newton of thrust. What acceleration can it give to a space probe with a mass of 1000kg?.
According to the thrust force, the acceleration is 0.001 m/s².
We need to know about force to solve this problem. According to second Newton's Law, the force applied to an object will be proportional to mass and acceleration. Hence, it can be written as
F = m . a
where F is force, m is mass and a is acceleration
From the question above, we know that
F = 1 N
m = 1000 kg
By substituting the given parameters, we can calculate the acceleration
F = m . a
1 = 1000 . a
a = 1/1000 m/s²
a = 0.001 m/s²
Hence, the acceleration is 0.001 m/s².
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QC A 3.00 -g copper coin at 25.0°C drops 50.0m to the ground. (a) Assuming 60.0% of the change in gravitational potential energy of the coin-Earth system goes into increasing the internal energy of the coin, determine the coin's final temperature. "
The final temperature of the coin is determined as 25.76 ⁰C.
Gravitational potential energy of the coin-Earth system
P.E = mgh
where;
m is mass of the coinh is height of fallP.E = 0.003 x 9.8 x 50
P.E = 1.47 J
Increase in the internal energy of the coinQ = 60% of 1.47 J
Q = 0.6 x 1.47 J
Q = 0.882 J
Final temperature of the coin
Q = mcΔθ
Q = mc (T - 25)
where;
c is specific heat capacity of copper = 389 J/kgK0.882 = 0.003 x 389(T - 25)
0.756 = T - 25
T = 25.76 ⁰C
Thus, the final temperature of the coin is determined as 25.76 ⁰C.
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