Author Question: Which of the following trips would consume more fuel for a given spacecraft? 1.a trip from the ... (Read 73 times)

darbym82 · **on:** Jul 28, 2018

Which of the following trips would consume more fuel for a given spacecraft?

1.a trip from the Earth to the Moon
2.a trip from the moon to the Earth
3.They both require the same amount of fuel.
4.It is impossible to determine.

Question 2

Which of the following forms of energy is the greatest for a system of a comet in orbit about the Sun during perihelion (the comet's closest approach to the Sun).
1.the total mechanical energy
2.the potential energy
3.the kinetic energy
4.none of these