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A centrifuge rotor rotating at 9300 rpm is
shut off and is eventually brought
uniformly to rest by a frictional torque of
1.70 m.N.
1. If the mass of the rotor is 4.27 kg and it
can be approximated as a solid
cylinder of radius 0.0950 m, through
how many revolutions will the rotor
turn before coming to rest?
2. How long will it take?

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