Question: Kepler's Law of Periods. (1 Viewer)

[Fortify]

Question:
Calculate the altitude of ROSAT's orbit. Its orbital period was 96 minutes. The radius of the earth is 6373km.

I got 387953.75m for R but then 387953.75m minus 6373000 is a negative number.

 

[Kwayera]

T^2 = (4pi^2)/(GM) x a^3

 

[Fortify]

Oh shit; forgot to square T. Thanks Kwayera.