Re: OT Poll: Does our solar system have 8 or 9 or 10 known planets?


"Robert J. Kolker" <nowhere@xxxxxxxxxxx> wrote in message
news:4a7df0Frq95kU2@xxxxxxxxxxxxxxxxx
Robin Levett wrote:



Nope. The mass ratio is 1:81;

Wrong. It is 1:6. A person weights 1/6 on the Moon what he does on
earth. The center of gravity lies outside both the Earth and the Moon.

Take a deep breath Bob.

Mass of the earth is 5.97e24kg.
Mass of the moon is 7.35e22kg.

That looks a lot closer to 1:81 than 1:6 to me.

The weight of a person on the surface of the moon vs their weight on the
surface for the earth is dependent on two factors in addition to the masses
of those two bodies.


.

Relevant Pages

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  • Re: Conservation of angular momentum
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