If the heart pushes $1 cc$ of blood in one second under pressure $20000 N/m^2$ the power of heart is.......$ W$
If the heart pushes $1 cc$ of blood in one second under pressure $20000 N/m^2$ the power of heart is.......$ W$
$0.02$
$400$
$5 × 10^{-10}$
$0.2$
If the heart pushes $1 cc$ of blood in one second under pressure $20000 N/m^2$ the power of heart is.......$ W$
${\rm{Power}} = \frac{{{\rm{workdone}}}}{{{\rm{time}}}} = \frac{{{\rm{pressure }} \times {\rm{ change in volume}}}}{{{\rm{time}}}}$
= $\frac{{20000 \times 1 \times {{10}^{ - 6}}}}{1}$$ = 2 \times {10^{ - 2}} = 0.02\;W$