Re: Satelite Motion

[Bernard Cleyet <anngeorg@PACBELL.NET>]

L doesn't change?

If L is measured WRT the center of the earth, yes.  But, is not the C of
M of the system not at the center of the earth?  Is it appropriate, in
this problem, to arbitrarily use the C of the Earth as the measure of
L?  Doubling the Earth's mass will move the C of M of the system towards
the C of the Earth.

bc

Carl E. Mungan wrote:

> David Abineri wrote:
>
>
>
> > If the earth's gravity doubled, how would the moon's orbit be affected?
> >
> > I am getting tangled up in having too many variables and it is not at
> > all obvious what might happen. Would the results be different if it
> > happens instantaneously rather than incrementally?
>
> Orbital motion can be described by two constants. These constants can

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