[问答题]
A nonrotating cylindrical disk of r(e55rl 7a tp/dczf2c mos-xbiju 1 kb im4 330v,19v7qbkl ecltment of inertia I is dropped onto an identicalbse3 xjmvb -ub3k,l1ci0 7vlq t149ik disk rotating at angular speed $\omega$ Assuming no external torques, what is the final common angular speed of the two disks?