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BitterSuites

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**[SOLVED] Centripetal Acceleration Part II**

## Homework Statement

(From previous question) In order for a satellite to move in a stable circular orbit of radius 6689 km at a constant speed, its centripetal acceleration must be inversely proportional to the square of the radius of the orbit.

What is the speed of the satellite? The G is 6.67259e-11 and the mass of the Earth is 5.98e24kg.

The answer to this was 7723.55 m/s.

Part II:

Find the time required to complete one orbit. Answer in units of h.

## Homework Equations

The book only gives one equation for T referencing orbits, which is v=2pir/T

## The Attempt at a Solution

v=2pi/T

7723.55 = 2pi/T

7723.55T = 2pi

T = 2pi/7723.55

T = .000814

I think the homework system even laughed at me when I entered that answer :)