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DRM126
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Homework Statement
An asteroid revolves around the sun with a mean orbital radius twice that of Earth's. Predict the period of the asteroid in Earth years
Homework Equations
I guess t^2/r^3 where t = period and r = mean orbital radius
The Attempt at a Solution
I missed the lecture in class, and I'm ultimately confused on the subject of Orbital Dynamics and Kepler's Law, any help/explanation would be great, or a link to a useful website, honestly I'm clueless. I think the fact that the r for the asteroid is twice as long as Earth's creates a ratio?