mass of moon Watch

zemi
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how can we find mass of moon and earth by different method
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RossB1702
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For an object with a fixed mass at the surface of the Earth/moon you could do F = (GMm/r^2) and you already know the value for F as is just the weight of the object(w=mg), you also already have the value for the objects mass, G(6.67x10^-11) and the radius of the moon and Earth. You could then rearrange to get M(mass of planet) by subbing in the values.


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