Answer:
T = 99.51 hour
Explanation:
Mass of Uranus,
The moon Umbriel orbits Uranus at a distance of
We need to find Umbriel's orbital period. Let it is T. Using Kepler's third law of motion to find it.
As 1 hour = 3600 s
358244.51 s = 99.51 hour
Hence, Umbriel's orbital period is 99.51 hour.