1. The problem statement, all variables and given/known data How much torque is required to rotate a disk or diameter 1.4cm, height 1cm, weight 12g? 2. Relevant equations I think Iz = mr^2/2 Torque = force x distance 3. The attempt at a solution Iz = 2.95 * 10^-7 I do not know where to go from here. Thank you.