Posted by **kelly** on Thursday, March 3, 2011 at 9:33pm.

Calculate the value of g for a satellite that is orbiting in a circle at an altitude equal to 3 Earth radii.

also, along the same lines,

A typical shuttle altitude is 220 km. Calculate the value of g at this altitude.

The the mass of the Earth = 5.98 x 10^24 kg and the radius of the Earth is 6.37 x 10^6 m.

- physics -
**drwls **, Thursday, March 3, 2011 at 11:57pm
A) If R (measured from the center of the earth) increases by a factor of 4, as in this case, g gets multiplied by 1/16.

B) At 220 km altitude, R becomes

6370 km + 220 km = 6590 km.

g gets multiplied by (6370/6590)^2 = 0.934

For the actual value of g at those altitudes, multiply those factors by 9.81 m/s^2.

## Answer This Question

## Related Questions

- physics - Calculate Earth’s gravitational force on the Shuttle astronauts while ...
- Physics - The shuttle must perform the de-orbit burn to change its orbit so ...
- Physics - The shuttle must perform the de-orbit burn to change its orbit so ...
- Algebra - A satellite is in orbit around the earth, traveling at a rate of 85.4 ...
- Physics - The De-orbit Burn The Shuttle must reduce its velocity at a pre-...
- Physics - You observe an arti cial satellite orbiting the earth and estimate it ...
- 11th grade - Calculate the minimum change in velocity (delta V or ∆V) ...
- help physics - A satellite, LangSat, moves in circular orbit around the Earth at...
- physics - A satellite of mass 2500kg is orbiting the Earth in an elliptical ...
- physics - A satellite of mass 2500kg is orbiting the Earth in an elliptical ...

More Related Questions