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Calculus 1

A cylindrical tank is full of water and its radius is 3 feet and height is 8 feet. Find the work done pumping the water out of the tank through a pipe which rises 5 feet above the top of the tank. Assume that water weighs 62.5 lbs/ft^3

The water trough is 5 feet long and its ends are trapezoids as shown. If the water trough is full of water, find work done in pumping the water out over the top. Assume that water weighs 62.5 lbs/ft^3.