Imagine the plumb bob as a perfect cone, compute for the volume of steel needed to make the cone if the dimension are a diameter of 60 mm and a height of 40 mm.

The height of a cone shaped tank for liquid storage in a chemical factory is 9 ft with a diameter of 14 ft. 

a) what is the volume of liquid the tank can hold in cubic feet? 

b) if the storage tank releases water with a rate of 350 liters per minute, how many minutes will it take for the tank be emptied?

Tr%=D 30 mmt Iy sk h = 40 mm