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    Miia's Avatar
    Miia Posts: 3, Reputation: 1
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    #1

    Oct 19, 2007, 01:27 PM
    Mass of planet
    Captain Kirk and spock are sitting on an uncharted planet whose diameter is 2400 km. but whose mass is not. If the normally 95 kg Kirk is found to weight 105 N on this planet, what is the mass of the planet?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Oct 19, 2007, 01:31 PM
    Just plug and chug into the formula for Newton's law of gravity. You have everything you need.
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