The Sun rotates about the center of the Milky Way Galaxy (Fig. 6-29) at a distance of about 30,000 light- years from the center (1 ly = 9.5 × 105 m). If it takes about 200 million years to make one rotation, estimate the mass of our Galaxy. Assume that the mass distribu- tion of our Galaxy is concentrated mostly in a central uniform sphere. If all the stars had about the mass of our Sun (2 x 1030 kg), how many stars would there be in our Galaxy? %3D (II) Sun AW (I) 1E bins viool 30,000 ly ov

The Sun rotates about the center of the Milky Way Galaxy (Fig. 6-29) at a distance of about 30,000 light- years from the center (1 ly = 9.5 × 105 m). If it takes about 200 million years to make one rotation, estimate the mass of our Galaxy. Assume that the mass distribu- tion of our Galaxy is concentrated mostly in a central uniform sphere. If all the stars had about the mass of our Sun (2 x 1030 kg), how many stars would there be in our Galaxy? %3D (II) Sun AW (I) 1E bins viool 30,000 ly ov

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter13: Gravitation

Section: Chapter Questions

Problem 84CP: Show that the period of orbit for two masses, m1 and m2 , in circular orbits of radii r1 and r2 ,...

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