The first law of motion describes the principle of

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

In which of the following is positive work done by a person on a suitcase

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.