The 30-kg uniform disk A and the bar BC are at rest and the 5-kg uniform disk D has an initial angular velocity ω1 of magnitude 440 rpm when the compressed spring is released and disk D contacts disk A. The system rotates freely about the vertical spindle BE. After a period of slippage, disk D rolls without slipping. Knowing that the magnitude of the final angular velocity of disk D is 176 rpm, determine the final angular velocities of bar BC and disk A. Neglect the mass of bar BC.