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Old September 14 2012, 11:53 AM   #8
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Re: About planetary gravity

RB_Kandy wrote: View Post
But you're telling me earth's gravity is not established by mass; but by density? It just doesn't make sense.
Here you go: this cork and penny have the same mass (they weigh the same)

which has the higher density?
They couldn't hit an elephant at this distance.
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