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21 February, 12:22

An automobile engine delivers 55.0 hp. How much time will it take for the engine to do 6.22 * 105 J of work? One horsepower is equal to 746 watts. Answer in units of s.

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  1. 21 February, 12:35
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    15.2 s

    Explanation:

    Convert hp to W:

    55.0 hp * 746 W/hp = 41,030 W

    Power = energy / time

    41030 W = 6.22*10⁵ J / t

    t = 15.2 s
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