A homogenous liquid whose density is 300kg/m^3 fills three buried container. The containers are each 10 meters tall.The top of each container is at...

A homogenous liquid whose density is 300kg/m^3 fills three buried container. The containers are each 10 meters tall.The top of each container is at ground level. All three containers have the same volume. The middle container is a cylinder and the other two are circular cones (one facing up and one facing down). Which container needs the least amount of work to empty (that is, to pump the liquid to ground level)? Which container needs the most work to empty. Justify your assertion by computing the work necessary in each case. You may also discuss why your answer is correct.