Homework Help: Physics HELP!!

Posted by LS on Tuesday, October 16, 2012 at 11:22am.

What is the acceleration due to gravity at 7220km above the Earth's surface? Take the radius of the Earth to be 6.37e6m and the mass of the Earth to be 5.972e24kg.

Physics HELP!! - Elena, Tuesday, October 16, 2012 at 11:31am
g=G•M/(R+h)²,
the gravitational constant
G =6.67•10^-11 N•m²/kg²,
Earth’s mass is M = 5.972•10^24 kg,
Earth’s radius is R = 6.37 •10^6 m.
h=7220000 m
Physics HELP!! - Oi, Friday, December 14, 2012 at 1:21am
1.69 m/s^2

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