1. Set up, but do not evaluate, integral expressions for (a) the mass, (b) the center of mass, and (c) the moment of inertia about the z-axis.
2. The solid of Exercise 21 p(x, y, z) √x²+ y²
3. The hemisphere x² + y² + z² < 1, z> 0 p(x, y, z) = √x² + y² + Z²