Posted by **alice** on Monday, January 6, 2014 at 1:06pm.

What is the ratio of the spin angular momentum of the earth and its orbital angular momentum about the sun. The mean radius of the earth is R=6400km. The radius of the earth's orbit is r=1.5*10^8km. You may assume the mass of the earth is uniformly distributed throughout its volume.

L=I omega = 2/5 MR^2.

Thanks for your help.

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