How many moons does Earth have and what is the frequency of rotation?

Answer 1

Earth has one moon. Its periods of axial rotation and orbital revolution are equal,

so that the same side always faces earth. The period is 27.32 days.

The corresponding frequency is 0.0366 per day, or 4.236 x 10-7 Hz. (rounded)

Answer 2

Earth has one moon. Earth rotates approximately once every 24 hours, which gives us the cycle of day and night.