A sanding disk with rotational inertia 1.3 x 10-3 kg - m² is attached to an electric drill whose motor delivers a torque of 12 N - m about the central axis of the disk. (a) About that axis and with the torque applied for 69 ms, what is the magnitude of the angular momentum of the disk? kg - m2/s (b) About that axis and with the torque applied for 69 ms, what is the magnitude of the angular velocity of the disk? rad/s

A sanding disk with rotational inertia 1.3 x 10-3 kg - m² is attached to an electric drill whose motor delivers a torque of 12 N - m about the central axis of the disk. (a) About that axis and with the torque applied for 69 ms, what is the magnitude of the angular momentum of the disk? kg - m2/s (b) About that axis and with the torque applied for 69 ms, what is the magnitude of the angular velocity of the disk? rad/s