What is the kinetic energy of photoelectron (in terms of keV) ejected from K-shell of a lead (EB-82x keV) By photo electric absorption of a photon of 200 keV?

Q: Friction slows a 3200kg truck down from a speed of 20m/s to a stop. It loses all its kinetic energy…

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Q: what is energy?

A: Different types of energy exist in the world such as physical energy, kinetic energy, potential…

Q: A body does 46 Joules of work in 5 seconds. Calculate the power?

A: Introduction :  In this question we are provided it value of time taken and work done . With these…

Q: What is your conclusion about Work and Energy topic?

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Q: What is the kinetic energy of a car of 1000kg moving at 90km/hr?. show the units

A: Mass of car ( m ) = 1000 kg  Velocity of car ( v ) = 90 km/hr  Convert km/hr to m/s  1 km/hr × 518 =…

Q: A roller coaster starts from rest. Ignoring the effects of friction, where would the coaster's…

A: Potential energy of a body of mass m situated at height h from the ground is given by, U=mgh.…

Q: What average power is needed to accelerate a 1 kg soccer ball from rest to 36 km/hr in 0.1 seconds?…

A: Given data: Mass (m) = 1 kg Initial velocity (v0) = 0 m/s Final velocity (v) = 36 km/hr Time (t) =…

Q: How fast must a 3,025-kg elephant move to have the same kinetic energy as a 65.0-kg sprinter running…

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Q: What is the potential energy of an 0.6 kg ball that is held 15 meters above a target?* O 9J O 25J O…

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Q: A 24kg body moves with a velocity of 4m/s. Determine its kinetic energy.

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Q: ive an example equation for an egg picking up speed from 2 feet in the air down a hay filled ladder…

A: When an object of mass m is drop from height h then it is initially at rest which is having a…

Q: rue or false Energy is conserved in all situations.

A: Given: The answer is mentioned below:

Q: Calcutate the Kinetic enery of a hody of 4K8 moring witha velocity of o.2 m/s? mass

A: Given Data: The mass of the body is: m=4 kg The velocity of the body is: v=0.2 m/s

Q: If a 1.5 kg chicken is running with a speed of 10.0 m/s, its kinetic energy is:   Question 19…

A: Given data:  Mass (m) = 1.5 kg Speed (v) = 10.0 m/s Required: Kinetic energy

Q: What is the ultimate source of energy for fossil fuels, dams, and windmills?

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Q: 15. A box is moved from the floor up to a tabletop but gains no speed in the process. Is there work…

A: Box is moved from the floor up to a tabletop

Q: What is mechanical energy?

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Q: What is Kinetic energy? Explain about it in detail.

A: Kinetic energy is the form of an energy that object can possess because  of motion of an object.…

Q: What are two ways that you can decrease the kinetic energy of a moving truck?

A: To explain : "Two ways that can decrease the kinetic energy of a moving truck"

Q: if an object's speed is doubled,how does it kinetic energy change?

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Q: A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy?

A: When the object falls freely towards the bottom, its mechanical energy decreases and K.E. will…

Q: Give an example of each type of kinetic energy.

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Q: A body does 22 Joules of work in 5 seconds. Calculate the power ?

A: Given data:  Work (W) = 22 J Time (t) = 5 s Required: Power (P)

Q: A 17 kg ball is thrown at a velocity of 15 km/hr to a 60 kg person who is at rest on ice. The person…

A: Mass of the ball, m=17 Kg velocity of the ball, u=15 km/hr=15 3.6m/s=4.167 m/s It is thrown towards…

Q: Listen Calculate the kinetic energy (in joules) of a 2500 kg vehicle travelling at 55 km/hr. Your…

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Q: rson catches the ball and s

A: Given: Mass of ball is 17 Kg Velocity is 15 km/ hr Mass of person is 60 Kg

Q: Use energy conservation to determine how fast you will hit the water below if you jump from a 8.0m…

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Q: Which of these energies could be negative? Kinetic Energy Potential Energy Work None of the above…

A: Given that :- Detail explanation of these energies shown below.

Q: Calculate the kinetic energy of a 150 g baseball moving at a speed of 40. m/s

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Q: The car which accelerates down the hill is the best example for energy.

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Q: Suppose you expend 1000 J of energy running up the stairs for 20 seconds. How much power did you…

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