Solution: On a 12.0-cm-diameter audio compact disc (CD),
Chapter , Problem 84(choose chapter or problem)
On a 12.0-cm-diameter audio compact disc (CD), digital bitsof information are encoded sequentially along an outwardspiraling path. The spiral starts at radius Rx = 2.5 cm andwinds its way out to radius R2 = 5.8 cm. To read the digitalinformation, a CD player rotates the CD so that the playersreadout laser scans along the spirals sequence of bits at aconstant linear speed of 1.25 m/s. Thus the player must accuratelyadjust the rotational frequency / of the CD as thelaser moves outward. Determine the values for / (in units ofrpm) when the laser is located at Ri and when it is at R2.
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