On 2011-02-16 16:51, Isaac Marino Bavaresco wrote:
> I was trying to do some gravitational calculations but I found several
> different values for G.
> Does anybody know what is the most accurate and current value?
>

Depends on the amount of earth between you and the planetary centroid.

>From https://secure.wikimedia.org/wikipedia/en/wiki/Earth%27s_gravity :

> The precise strength of the Earth's gravity varies depending on=20
> location. The nominal "average" value at the Earth's surface, known a=20
> standard gravity is, by definition, 9.80665 m/s^2 (32.1740 ft/s^2 ).=20


Check out the measured gravity map at that page!

Joe

--=20
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