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25-02-2021
Physics

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Question 8
A human heart beats once in 0.8 s. How many times it will beat in the life of 70 years of a man?

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25-02-2021

Answer:

hart beats in 0.8s=1

heart beat in 1s= 1/0.8

70 years=2207520000s

heart beat in 70years(2207520000s)=1.25x2207520000

=2759400000times

Explanation:

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