Question

The moon rotates about the earth in such a way that only one hemisphere of the moon faces the earth (figure 10-Q1). Can we ever see the other face" of the moon from the earth? Can a person on the moon ever see all the faces of the earth?

Answer 1

No, We can't see the Earth's other side of the Sun.  

Indeed, a human can see all of the Earth's faces on the Moon.

Explanation:

The Moon's angular velocity about its own rotation axis is the same as the Earth's angular revolution velocity. This means that the period of its rotation is equal to the period of its revolution. So we can see jus-t one face of the Earth's Moon.

The Earth's angular velocity around its axis, however, is not the same as the Earth's angular velocity of Sun. Therefore, from the Moon, all the Earth's faces are visible.