Calculate the rest energy and the kinetic energy of: a) A 100g ball travelling with the speed of 100m/s b) An electron travelling at a speed of 0.999c. Which one has greater...

Calculate the rest energy and the kinetic energy of: a) A 100g ball travelling with the speed of 100m/s b) An electron travelling at a speed of 0.999c. Which one has greater...

Two charges q1 = −3.20 nC and q2 = +8.15 nC are at a distance of 1.28 µm from each other. q1 is fixed at its location while q2 is released from rest. (a) What is the kinetic energy of...

A small car of mass 500kg is travelling at 120km/h when it hits stationary truck (of 1.5 tonne mass) head on. The small car rebounds and travels in the opposite direction at 40km/h. The collision...

A 1.00-kg block is pushed along a rough horizontal floor with a horizontal force of 5.00 N for a distance of 5.00 m. If the block is moving at a constant velocity of 4.00 m/s, find... The...

A girl on a playground swing starts from rest at an angle θ=34.2 from the vertical. The chains have length L=6.8 meters. Find her speed as she passes through the bottom of the swing. Assume no pushing,...

A wagon moving at 25 km/h has a kinetic energy of 6000 kg•km2/h2. What is the mass of the wagon

Photon is incident have frequency 1×?10?^14 sec^(-1). Threshold frequency of metal is 5 × ?10?^13 sec^(-1).find kinetic energy of electron 2.electron in hydrogen atom jump from excited state n...

Postulates of the Kinetic-Molecular Theory of Gases: 1. Gas particles are extremely small and have relatively large distances between them. 2. Gas particles act independently of...

A diagram shows a moving 5.00-kilogram cart at the foot of a hill 10.0 meters high. What is the minimum kinetic energy needed for the cart to move from its current position to reach the top of the...

You slide a block with a mass of m down an incline plane with a height of h that has a length of L. If there is a kinetic friction f acting on the object as it slides down the incline then...

1. Compared to a marble released from a height of .5 m, a marble released from a height of 1 m has: a) More SPE at the top of the fall b) More KE at the top of the fall c) More...

Question: As the speed of a bicycle moving along a level horizontal surface changes from 2 m/s to 4 m/s, the magnitude of the bicycle's: Multiple Choice: a. total energy remains...

A 4.25-kg block is sent up a ramp inclined at an angle θ = 31.5° from the horizontal. It is given an initial velocity v0 = 15.0 m/s up the ramp. Between the block and the ramp, the coefficient of...

Please explain fully, using physics terms.

Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction. A car traveling at 20 m/s has 1,000...

Calculate the rest energy and the kinetic energy of: a) A 100g ball travelling with the speed of 100m/s b) An electron travelling at a speed of 0.999c. Which one has greater rest energy...

Find your car's velocity before the collision. (Hint: use GPE = KE. The height of the ramp is 1m.) Show all your work. How is your egg able to get rid of its kinetic energy? How does the design of...

A cart with a mass of M is traveling at a velocity of V. a) What happens to the cart's kinetic energy when the mass of the cart triples? b) What happens to the cart's kinetic energy...

Two balls collide in a totally inelastic collision. The first ball has twice the mass of the second. The first ball has velocity v (to the right), and the second has velocity −v (to the left). What...

A person with a mass of 60.0 kg is traveling at 18 m/s. a) How much kinetic energy does this person have? b) How much work is required to stop the person? c)...

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