Author Question: An Earth satellite is in an elliptical orbit. The satellite travels faster when it is A) nearest ... (Read 93 times)

moongchi · **on:** Jul 29, 2018

An Earth satellite is in an elliptical orbit. The satellite travels faster when it is

A) nearest Earth
B) farthest from Earth
C) constant speed everywhere in orbit

and in close orbit travels faster when orbiting
4) the Moon.
5) Earth.
6) both about the same for the same altitudes.

Question 2

Escape speed from Earth is about

1) 8 km/s.
2) 11.2 km/s.
3) more than 11.2 km/s.

Interestingly, if a stone released at rest at the far edge of the solar system drops to Earth by virtue of only Earth gravity, it will strike Earth's surface with a speed of about
4) 8 m/s.
5) 10 km/s.
6) 11.2 km/s.
7) more than 11.2 km/s.