Describe the relationship between the v (rotation velocity) and r (distance from the center of the galaxy) toward the inner part of the galaxy from 0 to 1 kpc and the relationship between v and r for ...Describe the relationship between the v (rotation velocity) and r (distance from the center of the galaxy) toward the inner part of the galaxy from 0 to 1 kpc and the relationship between v and r for distances greater than 5kpc. Assuming the mass of the stars and gas within NGC 5055 is 8x10 10 M Sun , what is the percentage of dark matter in the galaxy?