[问答题]
A nonrotating cylindrical disk of momelh2bg - h;ki *4qikv/a+7q t-vs6tvfynt of inertia gg)xsa0 xu:m, I is dropped onto an identical d0gasu,xm)g :x isk rotating at angular speed $\omega$ Assuming no external torques, what is the final common angular speed of the two disks?