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15 January, 20:16

How much work does a 30W engine do if it operates for 40 seconds

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  1. 16 January, 00:04
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    Given that:

    Power (P) = 30 W,

    time (t) = 40 s,

    Work = ?

    we know that, power is defined as rate of doing work

    Power = Work : time

    => Work = Power * time

    = 30 * 40

    W = 1200 J
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