Acraane lifts an 8000n height 75m to the top of a buildings in 30s. how much power does the crane use?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?