An aquarium 2 m long, 1 m wide, and 1 m deep is full of water. Find the work (in J) needed to pump half of the water out of the aquarium. Use the fact that the density of water is 1000 kg/m?. Work done =':'J A tank in the shape of an inverted right circular cone has height 6 meters and radius 4 meters. It is filled with 3 meters of hot chocolate. Find the work required to empty the tank pumping the hot chocolate over the top of the tank. The density of hot chocolate is o = 1020 kg/m". Your answer must include the correct units. Work =A trough is 2 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y = a from x = -1 to x = 1 . The trough is full of water. Find the amount of work in foot-pounds required to empty the trough by pumping the water over the top. Note: The weight of water is 62 pounds per cubic foot