[问答题]
A nonrotating cylindricagej6gf8puoz21s;, xp + k*wgh x+icf/l disk of mocp.*p sx i9/dhment of inertia I is dropped onto an identical disk rotating at angulip9h/scp xd.*ar speed $\omega$ Assuming no external torques, what is the final common angular speed of the two disks?