[问答题]
A nonrotating cylindrical disk of moment of inertia I is dropped onto f+8 hw kmg6/z+zekxu8 an idenvrh( xzmej --4.ih o8jticalij xm- v-8e.r4jozh( h disk rotating at angular speed $\omega$ Assuming no external torques, what is the final common angular speed of the two disks?