PhysicsGravity
posted by Anna .
A orbiting satellite stays over a certain spot on the equator of (rotating) Pluto. What is the altitude of the orbit (called a "synchronous orbit")?
Do I use T^2=4pi^2/GM x r^3?

PhysicsGravity 
drwls
yes. Pluto's rotation period is 6.39 (earth) days. You will also need its mass.

PhysicsGravity 
Anna
then how do i get the altitude after i solve for r subtract the radius of pluto?

PhysicsGravity 
bobpursley
yes, altitude=rradiuspluto
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