[问答题]
A nonrotating cylindrical dp+p:xgke( (tuisk of msp9nz 3rz8xlxc mxz3yo(b+20oment of inertia I is dropped onto an identical disk rotating at angular speed oz(+ prycxnzxml083392z sbx$\omega$ Assuming no external torques, what is the final common angular speed of the two disks?