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06-02-2019
Physics

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Astronomers believe the moon used to be much closer to the earth(mass= 5.98 x 10^24 kg). When it was at 1.92 x 10^8 m, half its current distance, what was its orbital seed?

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06-02-2019

V = √Me*G/d = √5.98*10^24*6.674*10^-11/(1.92^10^8) = 1,442 m/sec = 5,190 km/h

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