1. A 50 kilogram person carries a 20 newton can to the top of a

3.0 meter high ladder and then drops it to the floor.

Calculate the potential energy of the can when it is

at the top of the ladder.

a.

[801)

b. Determine the kinetic energy of the can when it is

1.0 meter above the floor.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy