.111 Ooredo0 3:12 PM c @ 50%. \" session.masteringphysics.com , Problem 2.14 Mas

Question

.111 Ooredo0 3:12 PM c @ 50%. " session.masteringphysics.com , Problem 2.14 MasteringPhysics 4 of 6 Digital bits on a 12.0-cm diameter audio CD are encoded along an outward spiraling path that starts at radius Ri = 2.5 cm and finishes at radius R2 = 5.8 cm. The distance between the centers of neighboring spiral-windings s 1.6 um 1.6 x 10-*m Part A Part complete Determine the total length of the spiraling path. [Hint: Imagine "unwinding" the spiral into a straight path of width 1.6 m, and note that the original spiral and the straight path both occupy the same area.] Express your answer to two significant figures and include the appropriate units. I= 5400 m Submit Correct

Explanation / Answer

resuming with part A solution as total length of the spiraling path = 5400 m , and as we know speed=distance/time just applying this simple formula we can find out the maximum playing time of such cd.

time = distance/ speed

=5400/1.2= 4500 seconds or (1hour and 15 minutes.)

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