At What Altitude Should a Satellite Be Placed into Circular

Multiple Choice

At what altitude should a satellite be placed into circular orbit so that its orbital period is 48.0 hours? The mass of the earth is 5.976 × 10²⁴ kg and the radius of the earth is 6.378 × 10⁶ m.

A) 4.22 × 10⁷ m
B) 7.58 × 10⁷ m
C) 8.22 × 10⁷ m
D) 6.07 × 10⁷ m
E) 6.71 × 10⁷ m