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

Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. These are called geosynchronous orbits. The altitude of a geosynchronous orbit is 3.58 x10^7 m

a)What is the period of a satellite in a geosynchronous orbit?

b)Find the value of g at this altitude.

c)What is the apparent weight of a 2000 kg satellite in a geosynchronous orbit?

2. Relevant equations

No Clue, I have never done this type of question.

3. The attempt at a solution

I was hoping someone could either guide me through this question or provide me with an example i could learn off.

1. The problem statement, all variables and given/known data

Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 40.0 s to speed up from rest to its top speed of 1 rotation every 1.40 s. The astronaut is strapped into a seat 6.80 m from the axis.

b)How many g's of acceleration does the astronaut experience when the device is rotating at top speed? Each 9.80 m/s^2 of acceleration is 1 g.

2. Relevant equations

not sure.. once again I've never done this type of question.

3. The attempt at a solution

Well for his tangential acceleration i got 0.763m/s^2 but from that I don't know how to get the g's of acceleration.

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# Homework Help: Orbit, and Centrifuge questions

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