Homework Help: Physics

Posted by John on Thursday, March 6, 2008 at 3:09pm.

Our sun rotates in a circular orbit about the center of the Milky Way galaxy. The radius of the orbit is 2.2 1020 m, and the angular speed of the sun is 1.2 10-15 rad/s.
(a) What is the tangential speed of the sun?
m/s
(b) How long (in years) does it take for the sun to make one revolution around the center?
y

Physics - drwls, Thursday, March 6, 2008 at 4:21pm
a) V = (angular velocity) x (orbit radius)

b) Period = 2 pi/(angular velocity)
The answer will be in seconds, so you must convert that to years by dividing my the number of seconds in a year.
Physics - Anonymous, Thursday, December 9, 2010 at 9:44am
34.67
Physics - Anonymous, Sunday, December 19, 2010 at 6:04pm
a. 264000
Physics - Anonymous, Sunday, December 19, 2010 at 6:32pm
a. 264000

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