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April 20, 2014

Homework Help: PHYSICS

Posted by Blanca on Saturday, January 21, 2012 at 1:07pm.

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the rate of 7.80 rev/s when the length of the chain is 0.600 m. When he increases the length to 0.900 m, he is able to rotate the ball only 6.51 rev/s

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