If satellite A is in a 2:1 resonance with satellite B, this means ...

[ssal]

If satellite A is in a 2:1 resonance with satellite B, this means that:
 
  A) satellite A is twice as large as satellite B.
  B) satellite A moves twice as fast as satellite B.
  C) satellite A completes one orbit for every two orbits of satellite B.
  D) the orbit of satellite B takes twice as long to complete as that of satellite A.
  E) satellite B spins on its axis one time for every two orbits of satellite A.

Question 2

Stars that have masses similar to the Sun's, and sizes similar to the Earth are:
 
  A) main sequence stars.
  B) white dwarfs.
  C) red giants.
  D) red dwarfs.
  E) brown dwarfs.

[mk6555]

Answer to Question 1

D

Answer to Question 2

B

[ssal]

Both answers were spot on, thank you once again

[mk6555]

Great! Please up vote