Calculate the sum of all numbers from 1 to 40. show all the work!
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How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

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.

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created