Calculating a Spy Satellite's Orbit Parameters

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SUMMARY

The discussion focuses on calculating the orbit parameters of a spy satellite in a circular orbit around Earth, which completes one revolution in 6.00 hours. To determine the satellite's altitude and acceleration, the gravitational force equation GMm/r² = m(v²/r) is utilized, where mass cancels out. The mass of Earth (M) is required for calculations, and two equations involving velocity (v) and radius (r) are derived to solve for the unknowns.

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Homework Statement



A spy satellite is in circular orbit around Earth. It makes one revolution in 6.00 hours.

(a) How high above Earth's surface is the satellite?
________ km
(b) What is the satellite's acceleration?
________ m/s2

Homework Equations



GMm/r^2 = m(v^2/r)


The Attempt at a Solution



I don't understand how you find these answers if you don't have the mass of the satelite.
 
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masses cancel...

GMm/r^2 = m(v^2/r)

you can cancel m from both sides

GM/r^2 = v^2/r

you need to look up M the mass of the earth...

Get another equation in terms of v and r (use the 6.00hr)

Then you can solve for r and v, since you have 2 equations with 2 unknowns.
 

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