If the heart pushes 1 cc of blood in one sec | vedclass

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(A) Power is defined as the rate of doing work,which can be expressed as $P = \frac{W}{t}$.Since work done by pressure is $W = P 	imes \Delta V$,the

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$0.02$

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(A) Power is defined as the rate of doing work,which can be expressed as $P = \frac{W}{t}$.Since work done by pressure is $W = P 	imes \Delta V$,the power is $P = \frac{P 	imes \Delta V}{t}$.Given:Pressure $(P)$ = $20000 \ N/m^2$Volume $(\Delta V)$ = $1 \ cc = 1 \ cm^3 = 1 	imes 10^{-6} \ m^3$Time $(t)$ = $1 \ s$Substituting the values:$P = \frac{20000 	imes 1 	imes 10^{-6}}{1} \ W$$P = 2 	imes 10^4 	imes 10^{-6} \ W$$P = 2 	imes 10^{-2} \ W = 0.02 \ W$.

If the heart pushes $1 \ cc$ of blood in one second under pressure $20000 \ N/m^2$,the power of the heart is ....... $W$.

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