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Math

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If a CD spins at 75 revolutions per minute, hoe long, in seconds, does it take for the CD to rotate through an angle of 1125 ?

  • Math - ,

    75 rev/min.

    V = (75 / 60) rev/s * 360 deg/rev = 450
    deg/s.

    t = 1125 deg / 450 deg/s = 2.5 Seconds.

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