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December 19, 2014

Homework Help: physics

Posted by ricki on Wednesday, January 26, 2011 at 9:43pm.

someone spinns with an angular velocity of 4.55rad/s with arms held out. his rotational inertia is 2.7kgm^2. whn the he pulls his arms in his angular velocity increases to 7.60rad/s. what is his rotary ek?

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