ch13-p057 - 57. From Keplers law of periods (where T =...

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57. From Kepler’s law of periods (where T = 2.4(3600) = 8640 s), we find the planet’s mass M : 2 26 3 2 4 4 (8640s) (8.0 10 m) 4.06 10 kg. M GM π §· ¡ ¨¸ ©¹
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