[问答题]
A nonrotating cylindrical dis5g zl3v-01s3pfcnf -m i y0-jvbl(klhk of mo 7m)0dcqim;nq;whk k9ment of inertia I is dropped onto an identical disk rotating at angular 7wkk mh)mn i9c qdq;;0speed $\omega$ Assuming no external torques, what is the final common angular speed of the two disks?