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प्रश्न
The work done by the heart is 1 Joule per beat. Calculate the power of the heart if it beats 72 times in one
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उत्तर
Total work done by the heart in one minute (i.e. 60 s.) is 72 beats or 72 joules.
∴ Power of heart =`("W(in Joules)")/("Time(in s)")=72/60"watts"` = 1.2 watts.
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