Once we get outside the dark matter halo of a galaxy,how should the speed of an orbiting body such as a satellite dwarf galaxy depend on its distance from the giant galaxy's center?

Question

Quizplus · Accepted Answer

The Answer of Once we get outside the dark matter halo of a galaxy,how should the speed of an orbiting body such as a satellite dwarf galaxy depend on its distance from the giant galaxy's center?

Once We Get Outside the Dark Matter Halo of a Galaxy,how