The Moon continually falls toward Earth, but doesn't get closer because
A) the distance of fall is very small.
B) its tangential velocity causes it to fall around as well as toward Earth.
C) gravitation is extremely weak at the Earth-Moon distance.
Question 2
For the astronauts inside an orbiting space vehicle the force of gravity that acts on them is
A) zero.
B) mainly due to Earth below.
C) mainly due to the mass of the space vehicle.
D) mainly due to nearby planets and stars.
E) none of the above