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Two common quantities of power are electrical power and mechanical power. Electrical power, measured in watts (W), is the rate at which electrical energy is converted into another form of energy, such as heat or light, in devices like light bulbs or motors. Mechanical power, also measured in watts, refers to the rate at which work is done or energy is transferred in mechanical systems, such as engines or turbines. Both quantities are essential in various fields, including engineering and physics.

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