14 A compact disc (CD) player varies the rotation rate of the disc in order to keep the part of the disc from which info
Posted: Sun Jul 17, 2022 7:49 pm
14 A compact disc (CD) player varies the rotation rate of the disc in order to keep the part of the disc from which information is being read moving at a constant linear speed of 1.28 m/s. Compare the rotation rates of a 12.4-cm-diameter CD when information is being read (a) from its outer edge and (b) from a point 3.55 cm from the center. Give your answers in rad/s and rpm.