A tank having the shape of an inverted right circular cone with a base radius of 10 ft. And a height of 15ft. is filled with water weighing 62.4 lb/ft^3 Find the work required to empty the tank by pumping water over the rim of the tank.

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe