Wednesday

August 20, 2014

August 20, 2014

Posted by **dreamygirl** on Tuesday, May 15, 2012 at 7:29pm.

a) Calculate the gravitational force between Earth and the MOST satellite at this altitude.

b) What speed does the MOST satellite need to maintain its altitude? Express the speed in metres per second and kilometres per hour.

c) Determine the orbital Period of MOST.

- Phizzics.... -
**Elena**, Wednesday, May 16, 2012 at 6:17am(a) F=G•m•M/(R+h)²,

where the gravitational constant G =6.67•10^-11,

Earth’s mass is M = 5.97•10^24 kg,

Earth’s radius is R = 6.378•10^6 m.

h =8.2•10^5 m,

m = 52 kg.

(b) m•a = m•v²/(R+h) = G•m•M/(R+h)².

v =sqrt [G•M/(R+h)]

T =2•π• (R+h)/v =

=2•π•(R+h)/sqrt[G•M/(R+h].

**Related Questions**

physics - A spacecraft is in circular Earth orbit at 5400km altitude. By how ...

Physics - two binary stars moving in a perfect circle orbit The stars have the ...

physics - Two Earth satellites, A and B, each of mass m, are to be launched into...

physics - Two Earth satellites, A and B, each of mass m, are to be launched into...

Physics - A satellite is given a boost of 540 MJ of energy to move it from its ...

Physics - The Apollo 8 mission in 1968 included a circular orbit at an altitude ...

Trigonometry - A satellite orbiting the earth in a circular path stays at a ...

Physics-Gravitational Potential Energy - A satellite is given a boost of 540 MJ ...

Algebra - A satellite is in orbit around the earth, traveling at a rate of 85.4 ...

physics - The planetMars requires 2.35 years to orbit the sun, which has a mass ...