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.
What is the magnitude of the gravitational acceleration (in
m/s2) due to Earth at the near-side surface of the
moon?