Satellite Orbiting around the Earth (gravitational fields)

AI Thread Summary
A 500 kg satellite in a circular orbit around Earth experiences a gravitational force of 3000 N. Using the gravitational force equation, the radius of the orbit is calculated to be approximately 8.15 x 10^6 meters. The discussion clarifies that the problem asks for the radius of the orbit, not the altitude, indicating that the Earth's radius should not be subtracted from this value. The participant realizes this distinction while working through the solution. The conversation highlights the importance of understanding the difference between orbital radius and altitude.
HarleyM
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Homework Statement


A 500 kg satellite experiences a gravitational force of 3000N while moving in a circular orbit around the Earth.

Find the radius of the orbit

Homework Equations



FG=GM1M2/r2
g=GME/r2

Mass of Earth= 5.98x1024 Kg
Radius of Earth= 6.38x106 m

The Attempt at a Solution




Fnet=FG
3000N=GMEMS/r2
r=√[(6.67x10-11)(5.98x1024)(500)/3000]
r= 8.15x106

DO I subtract the radius of the Earth from my answer for radius of sattellite? OR would that give me the altitude, and they just want radius?
 
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Well, they did ask for radius, not altitude.
 
Ya I kind of answered my own question as I typed it up here, thanks for the advice
 

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