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August 31, 2015

Homework Help: Physics

Posted by Kyle on Sunday, November 2, 2008 at 10:53am.

(a) Calculate the kinetic energy that the earth has because of its rotation about its own axis. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 9.33e9 Joules.

I found moment of inertia by .5xMRe2

How do you find angular velocity?

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