A cistern in the form of an inverted right circular cone is 20 m. deep and 12 m. diameter at the top. If the water is 16 m. deep in the cistern, find the work done in kiloJoules to pump out the water. The water is raised to a point of discharge 10 m. above the top of the cistern.

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A: Requried : Pressure of city water at pumping station is increased by 18 units of pressure. The…

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A: True.

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A: Wrok done can be by the formula W=∫F.dx Where F is the force and dx is the displacement.