10. Find the total force on the face of a semicircular dam with a radius of 20 m when its reservoir is full of water. The diameter of the semicircle is the top of the dam. Use METRIC units 7. Let R be the region bounded by the curve f(x) = (x + 1)2, the x-axis, and the lines x = 0 and x = 2 . Find the volume of the solid of revolution obtain by revolving R about the x-axis. use Disk Method and must show work