Rolling may be described as a continuous forging operation. is this description appropriate? explain.

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

In which of the following is positive work done by a person on a suitcase

Which describes increasing the efficiency of energy resource