Question 1
Which force is primarily responsible for the orbital motion of stars within a galaxy?
Question 2
What is a rotation curve in the context of galaxy dynamics?
Question 3
The unexpected flatness of galaxy rotation curves at large distances from the galactic center provides strong evidence for the existence of what?
Question 4
Which of the following best describes the mass distribution in a typical spiral galaxy?
Question 5
What is the primary method used to determine the mass of a galaxy?
