A child on the high dive has a mass of 40 kilograms. If the high dive is 10 meters in the air, what is the potential energy? options-
1. 400 joules
2. 3920 joules
3. 4 joules

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

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?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion