(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A satellite is in a circular orbit about the earth (M = 5.98 x 1024 kg). The period of the satellite is 7.12 x 104 s. What is the speed at which the satellite travels?

2. The attempt at a solution

I used the equation:

http://img171.imageshack.us/img171/7176/math062gg0.gif [Broken]

Re-arranged it to isolate r:

http://img74.imageshack.us/img74/9274/math065rr5.gif [Broken]

After I got radii, i solved for velocity:

http://img171.imageshack.us/img171/3975/math053pd6.gif [Broken]

My answer: 1.26x10^7 m/s

Teacher: Incorrect

Note: The numbers in the equations are not the actual ones i used.

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# Homework Help: Circular Orbits

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