a hemisherical tank of radius 7/4 m is full of water . it is connected with a pipe which implies it at rate of 7 litres per second . how nuch time will it take to empty the tank completely
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1 m³= 1000 l
1 l = 1000 cm³
7 litres per second = 7000 cm³ per second
7 / 4 m = (7 / 4)*100 = 7*25 = 175 cm
Voume of hemisphere = 2 / 3* pie * (175)*(175)*(175) = 11229166.6666.... cm³
11229166.6666.... cm³ =11229.1666...... litres
Water emptied per second = 7 litres
Time required to empty the tank is
11229.1666..... * 1 / 7 = 1604.1666.... sec
= 26.74 minutes
1 l = 1000 cm³
7 litres per second = 7000 cm³ per second
7 / 4 m = (7 / 4)*100 = 7*25 = 175 cm
Voume of hemisphere = 2 / 3* pie * (175)*(175)*(175) = 11229166.6666.... cm³
11229166.6666.... cm³ =11229.1666...... litres
Water emptied per second = 7 litres
Time required to empty the tank is
11229.1666..... * 1 / 7 = 1604.1666.... sec
= 26.74 minutes
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