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Q)

The average work done by a human heart while it beats once is 0.5 J. Calculate the power used by the heart if it beats 72 times in a minute.

$\begin{array}{1 1} (a)\; 60W \\ (b)\; 6 W \\ (c)\; 0.6W \\ (d)\; 0.06W \end{array}$

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