The mass of Earth is 5.972 * 1024 kg, and the
radius of Earth is 6,371 km. The mass of the moon is 7.348 *
1022 kg, and the radius of the moon is 1,737 km.
The centers of the Earth and the moon are separated by 384,400
km.
How does the gravitational acceleration due to the moon at the
near-side surface of Earth compare to the gravitational
acceleration due to Earth at the surface of Earth (i.e., what value
is gmoon at surface of Earth / gEarth at
surface of Earth)?