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Q&A If Earth mass is doubled, what is the change of earth's orbit

I built a magic system that rationalized the creation of energy, so the energy source of magic is not a problem. (How this system works is not the main point of this question.) When people keep us...

1 answer  ·  posted 7y ago by fairytale‭  ·  last activity 7y ago by fairytale‭

Question physics