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A jewel smith wishing to buff a finished piece of jewelry attaches a buffing disk to his drill. The radius of the disk is 4.50 mm and he operates it at 2.30 104 rad/s.

(a) Determine the tangential speed of the rim of the disk.

m/s

(b) The jeweler increases the operating speed so that the tangential speed of the rim of the disk is now 290 m/s. What is the period of rotation of the disk now?

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Category:- Physics
Reference No.:- M91083195

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