Two disks are rotating about the similar axis. Disk A has a moment of inertia of 4.83 kg•m2 and an angular velocity of +8.70 rad/s. Disk B is rotating with an angular velocity of-8.90 rad/s. The two disks are then linked together without the aid of any external torques, therefore that they rotate as a single unit with an angular velocity of -3.26 rad/s. The axis of rotation for this unit is the same as that for the separate disks. Determine what is the moment of inertia of disk B?