There is a bell at the top of a tower that is 45m high. The bell weighs 19kg. The bell has energy. Calculate it.

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Which feature of a heating curve indicates a change ofn state

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.