a) What is its potential energy before sliding down the incline? b) What is the velocity of the block after sliding 12.5 m? c) What is its kinetic energy at the foot of the incline? c) Is energy conserve? d) What would the velocity be at the foot of the incline if the friction were negligible?

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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.