2. A 10 gram ball is held 2 meters from the ground. It hasPotentiaenergy.Calculate it.You serve a volleyball with a mass of 2100 g. The ball leaves your hand with a velocityof 30 m/s. The ball hasKinetic_energy. Calculate it.2. A toy baby carriage is sitting at the top of a hill that is 21 m high. The carriage with thebaby has a mass of 200 grams. The carriage hasenergy. Calculate it.3. A toy car is traveling with a velocity of 4 m/s and has a mass of 1120 g. The car hasenergy. Calculate it.4. A cinder block is sitting on a platform 20 m high. It has a mass of 790 grams. Theblock hasenergy. Calculate it.

(1) Mass, m=10 g Height, h=2 m Potential energy, =mgh=10×10×2=200 J

2. A 10 gram ball is held 2 meters from the ground. It hasPotentiaenergy. Calculate it. You serve a volleyball with a mass of 2100 g. The ball leaves your hand with a velocity of 30 m/s. The ball hasKinetic_energy. Calculate it.

2. A 10 gram ball is held 2 meters from the ground. It hasPotentiaenergy. Calculate it. You serve a volleyball with a mass of 2100 g. The ball leaves your hand with a velocity of 30 m/s. The ball hasKinetic_energy. Calculate it.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter5: Relativity

Section: Chapter Questions

Problem 113AP: The sun energy at a rate of 3.85×10 26 W by the fusion of hydrogen. About 0.7% of each kilogram of...

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Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.

Question

2. A 10 gram ball is held 2 meters from the ground. It hasPotentiaenergy.
Calculate it.
You serve a volleyball with a mass of 2100 g. The ball leaves your hand with a velocity
of 30 m/s. The ball hasKinetic_energy. Calculate it.
2. A toy baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the
baby has a mass of 200 grams. The carriage has
energy. Calculate it.
3. A toy car is traveling with a velocity of 4 m/s and has a mass of 1120 g. The car has
energy. Calculate it.
4. A cinder block is sitting on a platform 20 m high. It has a mass of 790 grams. The
block has
energy. Calculate it.

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