On a 12.0-{rm cm}-diameter audio compact disc (CD), digital bits of information are encoded sequentially along an outward spiraling path. The spiral starts at radius R_1 = 2.6 cm and winds its way out to radius R_2 = 5.9 cm. To read the digital information, a CD player rotates the CD so that the player's readout laser scans along the spiral's sequence of bits at a constant linear speed of 1.26 m/s. Thus the player must accurately adjust the rotational frequency f of the CD as the laser moves outward.Determine the values for f (in units of rpm) when the laser is located at R_1. Determine the values for f (in units of rpm) when the laser is located at R_2