Skier going down a mountain has 98,000 J of gravitational potential energy, 10,000 J of kinetic energy and 2000 J of thermal energy. At the bottom of the mountain he has 90,000 J of kinetic energy how much thermal energy does he have at the bottom of the mountain

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.