A 1.62-kg rock is released from rest at a height of 15.8 m. Ignore air resistance and determine (a) the kinetic energy at 15.8 m, (b) the gravitational potential energy at 15.8 m, (c) the total mechanical energy at 15.8 m, (d) the kinetic energy at 0 m, (e) the gravitational potential energy at 0 m, and (f) the total mechanical energy at 0 m. (a) Number i (b) Number i (c) Number i (d) Number i (e) Number i (f) Number i Units Units Units Units Units Units

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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.