Author Question: Chemical rockets work on which basic physical principle? A) Kepler's first law of planetary ... (Read 62 times)

ec501234 · **on:** Jul 27, 2018

Chemical rockets work on which basic physical principle?

A) Kepler's first law of planetary motion
B) Einstein's special theory of relativity
C) Newton's third law of motion
D) the law of conservation of energy

Question 2

In order to have a global magnetic field, a planet must have

A) an electrically conducting fluid in its interior which is undergoing convection and a reasonably rapid rotation
B) magnetic rocks in its interior
C) magnetic rocks on its surface
D) a large core of solid magnetized iron