The disk on the bottom has a rotational inertia of i0 and is spinning clockwise on a horizontal surface having negligible friction at an angular speed of 3ω0. the top disk is then dropped directly on top of the bottom disk. the top disk has a rotational inertia of i0 and was initially spinning counterclockwise at an angular speed of ω0. if the initial total kinetic energy of the two-disk system was e0, what will the kinetic energy of the system be once the objects reach a common angular speed?