[问答题]
A nonrotating cylindrical disk 2.nbf5) lqpxbs zfa zcx,z(-/of 3*idi6l rebmsb+ , xl3pk8a2 zmoment of inertia I is dropped onto an identical disk rotating at angular speed ix8zb+sp, i e*3a2rm 36kd llb$\omega$ Assuming no external torques, what is the final common angular speed of the two disks?