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29 April, 19:42

The hammer of an electric bell strikes 1440 times in a minute and does a work of 0.2 J per strike. what is the power of hammer in S. I. system?

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  1. 29 April, 20:20
    0
    Hello there.

    The hammer of an electric bell strikes 1440 times in a minute and does a work of 0.2 J per strike. what is the power of hammer in S. I. system?

    4.8 Watt
  2. 29 April, 21:12
    0
    First we need to convert the frequency to the correct SI units (seconds)

    Frequency of bell = 1440/60 = 24 Hertz (Strikes per second)

    Power is the rate of work being done or the work done per second.

    P = E/t = (24 * 0.2) / 1 = 4.8 Watt
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