Finding satellite orbital period at 161000 m altitude

[Oijl]

Homework Statement

What is the period of revolution (in minutes) of a satellite orbiting Earth at 161000 m?

Homework Equations

T^2 = (4*pi*r^3)/(GM)

The Attempt at a Solution

Well, I plugged in the values, and got T = 5250.925844, but that's not right. T, would come out as seconds, right?

 

[Dweirdo]

dividing your answer by 60 won't get the right solution? cause your T is in seconds..
in r you wrote (Re+161000) right?

 

[Oijl]

K, I'm good with this now. Garbage in, garbage out; I was using bad numbers (over and over again).

 

[Dweirdo]

Lol, happens all the time, My friend saved the mass and radius of the Earth in his calculator storage, and accidentally used mass for radius and radius for mass :D
well good luck any way,glad You made it.

 

[3.211k]

T^2 = (4*pi*r^3)/(GM)

Should pi be squared in this equation?

 

[Dweirdo]

Should pi be squared in this equation?

Yes.