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Find the work (in ft-lb) required to pump all the water out of a cylinder that...

Find the work (in ft-lb) required to pump all the water out of a cylinder that has a circular base of radius 6 ft and height 200 ft. Use the fact that the weight-density of water is 62.4 lb/ft3.

Find the work (in ft-lb) required to pump all the water out of the cylinder if the cylinder is only half full.

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