A rectangular tank that is 3 feet long, 6 feet wide and 3 feet deep is filled with a heavy liquid that weighs 110 pounds per cubic foot. In each part below, assume that the tank is initially full. Your answers must include the correct
units
. (You may enter
lbf
or
lb*ft
for
ft-lb
.)
(a) How much work is done pumping all of the liquid out over the top of the tank?
(b) How much work is done pumping all of the liquid out of a spout 6 feet above the top of the tank?
(c) How much work is done pumping two-thirds of the liquid out over the top of the tank?
(d) How much work is done pumping two-thirds of the liquid out of a spout 6 feet above the top of the tank?
You can earn partial credit on this problem.