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Physics, 29.11.2019 05:31 kulvindar1984
Acd player rotates at a variable speed so that a laser can scan pits and lands on the disk’s bottom surface at a constant tangential speed of 1.2 m/s. the disk has a moment of inertia of 1.2 x 10-4 kg m2and the music is first detected when the laser is located 15 mm from the disk’s center. assuming the disk started from rest, find the work done by the motor during this start-up.
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Acd player rotates at a variable speed so that a laser can scan pits and lands on the disk’s bottom...
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