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Unformatted text preview: plane. Assume all the mass of the wheel is out on the rim. Find (a)its rotational inertia, (b)the torque exerted by gravity, and (c)its rate of spin. 3. In addition to revolving around the sun and rotating about its center, Earth precesses just like all tops that feel torques due to gravity. Earth goes through one complete precession cycle in a period of approximately 25,800 years. Incidentally, this is why Polaris was not the pole star in times past. Anyway, back to the issue at hand. Find the gravitational torque on Earth that would cause this precession and speculate as to its cause....
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This note was uploaded on 03/11/2012 for the course PHYSICS 204A taught by Professor Kagan during the Fall '09 term at CSU Chico.
- Fall '09