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A Compact Disc of a CD Player Has a Moment ω \omega

Question 19

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A compact disc of a CD player has a moment of inertia I = 2.5 *10-5 kg · m2 and rotates at 500 rev/min. Taking L = I ω \omega and using the quantization of angular momentum, the approximate value of L is (  A compact disc of a CD player has a moment of inertia I = 2.5 *10<sup>-5</sup> kg · m<sup>2</sup> and rotates at 500 rev/min. Taking L = I  \omega   and using the quantization of angular momentum, the approximate value of L is (   = 1.055* 10<sup>-34</sup> J · s)  A)  1.2* 10<sup>32 </sup> B)  2.0 * 10<sup>30 </sup> C)  1.2* 10<sup>31</sup><sup> </sup> D)  130 E)  3.5 * 10<sup>15 </sup> = 1.055* 10-34 J · s)


A) 1.2* 1032
B) 2.0 * 1030
C) 1.2* 1031
D) 130
E) 3.5 * 1015

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