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17 April, 12:08

If 270 watts of power is used in 42 seconds, how much work is done? (Unit is joules (J), just type the number. Use commas if necessary).

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  1. 17 April, 12:48
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    11340

    Explanation:

    Power = Work/time.

    P = W/t ... Equation 1

    Make W the subject of the equation,

    W = Pt ... Equation 2

    Given: P = 270 Watts, t = 42 seconds

    Substitute these values into equation 2

    W = 270 (42)

    W = 11340 J

    Hence the work done is 11340
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