# The Solution to Kepler's Laws and Earth Satellites

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A geosynchronous satellite stays above the same point on the equator of the Earth (a typical TV satellite). Determine algebraically:

(a) The height above the Earth's surface it must be.

(b) What the satellite orbital speed is?

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#### Solution Preview

To solve this problem, I will let m be mass of satellite and M be mass of earth.

a)

We only have force of gravity on satellite so that must be the force that holds the satellite in orbit.

Gravity: F = GmM / r^2

force needed for circular motion: F ...

#### Solution Summary

This solution discusses the solution to Kelper's Laws and Earth satellites.

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