Homework Help: Science-Astronomy

Posted by Anonymous on Monday, October 6, 2008 at 11:17pm.

Using the equation speed=distance/time, calculate the speeds(in km/hour) of a geosynchronous satellite

I'm given that the distance from this particular geosynchronous satellite is 36000km from Earth, and orbits Earth 24h. I can not understand how to solve this question. My initial thought was to divide 36000 by 24, giving me 1500, however this answer was wrong. Im sure that you somehow need to include the circumference of Earth, however I dont understand. Please help me!

Science-Astronomy - bobpursley, Tuesday, October 7, 2008 at 2:44am
Add the altitude (given) to the radius of the earth.

Distance=2PI*radius.

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