A mover uses a pulley to lift a 2,400 Newton piano up to the second floor. Each time he pulls the rope down 2 meters (input distance), the piano moves up 0.25 meters (output distance). With what force does the mover pull on the rope?

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it 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