When studying the formation of mountain ranges, geologists estimate the amount of work required to lift a mountain from sea level. Consider a mountain that is essentially in the shape of a right circular cone. Suppose that the weight density of the material in the vicinity of a point P is
(a) Find a definite
(b) Assume that Mount Fuji in Japan is in the shape of a right circular cone with radius 62, 000 ft, height 12, 400 ft, and density a constant 200 lb/ft3. How much work was done in forming Mount Fuji if the land was initially at sea level?
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