[问答题]
A nonrotating cylindrical disk of moment of i l:nden l6pf0ngafq4 -5b : 4r,e-vzejnertia I is dropped onto an idsorpzl/bu6x a:tx,17fj( kv(entical disk rota/ l(af:tp(,ovs6ukr j7x z1bxting at angular speed $\omega$ Assuming no external torques, what is the final common angular speed of the two disks?