University Physics (14th Edition)
14th Edition
ISBN: 9780133969290
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Question
Chapter 13, Problem 13.39E
(a)
To determine
The mass of the object in kilograms and in solar mass at the center of the Milky Way galaxy.
(b)
To determine
Whether this massive object can be a single, ordinary star.
(c)
To determine
The Schwarzschild radius of the black hole and whether a black hole of this size would fit inside the earth’s orbit around the sun.
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A star near the visible edge of a galaxy travels in a uniform circular orbit. It is 43,500 ly (light-years) from the galactic center and has a speed of 275 km/s.
a.)Estimate the total mass of the galaxy based on the motion of the star. Gravitational constant is 6.674×10−11m3/(kg·s2) and mass of the Sun Ms=1.99 × 1030 kg.
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Chapter 13 Solutions
University Physics (14th Edition)
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