Describe what would happen if anything to the mass and weight when you go to jupiter

Identical marbles are released from the same height on each of the following four frictionless ramps . compare the speed of the marbles at the end of each ramp. explain your reasoning

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?