is the potential-energy diagram for a 500 g particle  that is released from rest at A. 1. What is the particle's speed at B? 2.What is the particle's speed at C? 3.What is the particle's speed at D?

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.