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by smdz
2198 days ago
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My thoughts on this - The energy used in sending a craft up is already lost when the craft leaves the planet. And potential energy can only be induced into the object from a larger mass. That is based on the object's mass and the large mass like a planet pulling the object. And the "value" (read: usefulness/utility) of that potential energy is based on where it exists P.S. I am not a physics guy and could be completely wrong here. |
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