A vat in the shape of an inverted pyramid with a rectangular base of 1 m x 0.5 m and height of 5 m is filled to a depth of 1 m with olive oil. How much work is required to pump all the olive oil over the top of the vat? (The density of olive oil is 930 kg/m) and g = 9.8 N/kg.) (Give your anwser as a whole number.) W~