physics

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If the Earth had two identical moons in one circular orbit, and the moons were as far apart in that orbit as they could be, the center of gravity of the Earth-moons system would beA) at the center of the Earth.B) outside the Earth, but beyond the orbital path of the moons.C) outside the Earth, but within the orbital path of the moons.D) inside the Earth, but off center.

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    Of course A. how could it be anything else?

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