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December 22, 2014

Homework Help: Plane Trigonometry

Posted by Willoby on Tuesday, January 4, 2011 at 3:41am.

A compact disk is 12 cm in diameter & rotates at 100 rpm when being played. The hole in the center is 1.5 cm in diameter. Find the speed in cm/min of a point on the disk & the speed of a point on the inner edge.

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