Please help solve problem 7.70 PartA/B. Thank you!

| Harris County Publ... SALE- Not Your Ave... KPRC 2 Community... HISTOLOGY GU A 17 g audio compact disk has a diameter of Express your answer with the appropriate units. 12 cm. The disk spins under a laser that reads encoded data. The first track to be read is 2.3 cm from the axis; as the disk plays, the laser scans ? tracks farther and farther from the center. The part of the disk directly under the read head moves at a constant 1.2 m/s. N T = 6.64 . 10 -4 m Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining V Part B As the disk plays, how does the angular speed change? O The angular speed decreases. O The angular speed remains constant. O The angular speed increases. Submit Request