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Re: Planetary gravity question.

From:
Date: Sun, 4 Aug 2002 11:34:17 -0700 (PDT)
Subject: Re: Planetary gravity question.



> Yes, if it were a lot denser than the moon is.  The
> moon's diameter is
> 0.27 of Earth, mass is .012E.
> That means the moon's gravity is
> g=M/r^2 = .012/.27^2 = .1646 of Earth.
> The moon's density is .61E; Earth is the most dense
> of the planets.
> Double the moon's density to 1.22E
> and you get .33gee.  Make it six times as dense as
> Earth and you get
> .99gee at the surface.  If you took an Earthlike
> planet and knocked
> most of the lighter layers off the top, that would
> be about right,
> more or less, approximately.	 I think the
> atmospheric density would
> drop off a lot faster than it would on Earth,
> though--you'd have have
> mountain peaks in semi-vacuum.

Wow. That was math. Help. :)

I knew that it depended on mass but now thats
confirmed... :)
Would the inclusion of denser materials and metals
make the soil toxic in any way?
I suppose that a planet which is this dense would a
lott more profitable (with richer finds) to mine?

This stuff is falling into place nicely! :)

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