Posted by **joey** on Monday, April 22, 2013 at 3:29pm.

4(a) What is the magnitude of the gravitational force of the Earth on a surveillance

satellite of mass 1040 kg that is in a grazing circular orbit 100 km above the

surface of the Earth.

(b) Find the magnitude of the acceleration of a satellite in such a grazing orbit.

(c) Determine the speed of the satellite.

Take the mass and radius of the Earth as 5.98 × 1024 kg and 6.37 × 106 m

respectively.

- physics -
**Elena**, Monday, April 22, 2013 at 4:04pm
The gravitational constant

G =6.67•10⁻¹¹ N•m²/kg²,

h=100000 m

m=1040 kg

Earth’s mass is M = 5.98•10²⁴kg,

Earth’s radius is R = 6.37 •10⁶ m.

(a) F =G•m •M/(R+h)²

(b) a= G• M/(R+h)²

(c) mv²/(R+h) = G•m •M/(R+h)²

v=sqrt (G•M/(R+h))

## Answer This Question

## Related Questions

- physics for physical science - (a)what is the magnitude of the gravitational ...
- physics - The mass of the Earth is 5.972kg, and the radius of Earth is 6, 371 km...
- Physics 203 - A satellite with a mass of 310 kg moves in a circular orbit 7.00*...
- physics - A satellite moves in a circular orbit around the Earth at a speed of 5...
- Physics - A communications satellite with a mass of 450 kg is in a circular ...
- Physics - A satellite used in a cellular telephone network has a mass of 2160 kg...
- physics - A satellite has a mass of 100 kg and is in an orbit at 2.00*10^6 m ...
- Physics I - An Earth satellite moves in a circular orbit 770 km above the Earth'...
- physics - An Earth satellite moves in a circular orbit 775 km above the Earth's ...
- physics - NASA launches a satellite into orbit at a height above the surface of...

More Related Questions