Pleaseeee helllllppppp i cant figure tizz out!!!!!!!!!!!!!!?

Question

Assume the world of Neopia is a spherical planet with a diameter of 1600 km with a uniform density of 5200 kilograms per cubic metre. If the moon of Kreludor is in a geostationary orbit around Neopia, and assuming a Neopian sidereal day is exactly 24 hours, how far is that geostationary orbit above the surface of Neopia?

Please submit your answer in kilometres, and round to the nearest kilometre. Submit only a number

Please help me i will pick u as a best answer!

Answer 1

First, this is probably the fifth time this question appears here on Yahoo Questions.  You will probably find the answer if you do a little bit of search.

Second, what's the point of just asking for answer (numner) without understanding how was it calculated?  You won't learn anything.

Now if you really want some help, I can help you, but only if you want to really learn.

Answer 2

4401km

Screwed this up twice before, but I finally got it right.

Answer 3

Perhaps someone will enlighten us as to why this question keeps cropping up. See:

http://answers.yahoo.com/search/search_r...

Edit: Ah - it's a Lenny Conundrum. Solution here:

http://lennyconundrumsolutions.blogspot....

Answer 4

63,521 km.