45. Let Nbe the number of stars in the galaxy, Mbe the mass of the Sun, and rbe the radius of the galaxy. The total mass in the galaxy is N Mand the magnitude of the gravitational force acting on the Sun is F = GNM2/r2. The force points toward the galactic center. The magnitude of the Sun’s acceleration is a = v2/R, where vis its speed. IfTis the period of the Sun’s motion around the galactic center then
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.