A star has a mass of 1.87 x 1030 kg and is moving in a circular orbit about the center of its galaxy. The radius of the orbit is 2.3 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.9 x 10-15 rad/s. (a) Determine the tangential speed of the star. (b) What is the magnitude of the net force that acts on the star to keep it moving around the center of the galaxy? (a) Number Units (b) Number i Units

A star has a mass of 1.87 x 1030 kg and is moving in a circular orbit about the center of its galaxy. The radius of the orbit is 2.3 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.9 x 10-15 rad/s. (a) Determine the tangential speed of the star. (b) What is the magnitude of the net force that acts on the star to keep it moving around the center of the galaxy? (a) Number Units (b) Number i Units

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 11P: A disk 8.00 cm in radius rotates at a constant rate of 1200 rev/min about its central axis....

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