Alarge bell is hung from a wooden beam so it can swing back and forth with negligible friction. the center of mass of the bell is 0.50 m below the pivot, the bell has mass 32.0 kg , and the moment of inertia of the bell about an axis at the pivot is 20.0 kg⋅m2 . the clapper is a small, 1.8 kg mass attached to one end of a slender rod that has length l and negligible mass. the other end of the rod is attached to the inside of the bell so it can swing freely about the same axis as the bel