A hemi-spherical tank of radius 1.75 m is full of water. it is connected with a pipe which empties the tank at the rate of 7 litre per second. how much time will iy take to empty the tank competely ?
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Step-by-step explanation:
volume of hemisphere=2/3 pie*r^3
=2/3*22/7*175^3
=11229167cm^3=11229.167 litre
time needed to empty tank= 11229.167/7=1604.16 second
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