Author Question: A hollow spherical planet is inhabited by people who live inside it, where the gravitational field ... (Read 11 times)

kellyjaisingh · **on:** Jul 29, 2018

A hollow spherical planet is inhabited by people who live inside it, where the gravitational field is zero. When a very massive spaceship lands on the planet's surface, inhabitants find that the gravitational field inside the planet is

A) still zero.
B) non-zero, directed toward the spaceship.
C) non-zero, directed away from the spaceship.

Question 2

Which rocket would require more fuel?

A) one going from the Moon to Earth.
B) one going from Earth to the Moon.
C) both the same.