The chamber of a rock-tumbling machine is a hollow cylinder with mass 120 g and radius 8.5 cm. The chamber is closed by end caps in the form of uniform circular disks, each of mass 33 g. Part A Find the rotational inertia of the chamber about its central axis Express your answer with the appropriate units
Part B Find the torque needed to give the chamber an angular acceleration of 3.3 rad/s2 . Express your answer with the appropriate units