Hi,=20
=20
I forgot one symbol in the last formula of course. Let me correct it:
=20
g =3D G*M/(r+h)=B2
=20
G =3D 6.67300 =D7 10-11 m3 kg-1 s-2
M =3D 5.9742 =D7 1024 kilograms
r (=3D earth radius) =3D 6378137 meters
h =3D 71 miles =3D 114263.424 meters
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so: g =3D 9.457803517 at 71 miles above sea level
if you take h =3D 0 you get g =3D 9.799709356 with these constants (which=
 I got from Google), so there isn't a lot of difference between the two.
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I hope that helps.
=20
Anthony

Anthony Van Herrewege <anthony_v_h@yahoo.com> wrote:
well, F =3D G * M * m / r=B2, with G being the gravitational constant (or=
 whatever it is called in English), M being the mass of the earth and r t=
he distance to the object, so I guess the gravity constant x miles above =
sea level would be: g =3D G * mass earth / (radius earth + 71 miles). Of =
course you'll need the total distance (r) in meters or inches or ... depe=
nding on what "format" G is in.

There's probably a lot of weird sentences/words in my explanation, but I'=
m sure you'll get what I'm trying to say. (In case the formula is correct=
 in the first place of course.)

Anthony

Website: http://members.lycos.nl/anthonyvh

		=09
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