The Sun, which is 2.2 * 10^20 m from the centerof the Milky Way galaxy, revolves around that center once every2.5 * 10^8 years. Assuming each star in the Galaxy has a mass equalto the Sun’s mass of 2.0 * 10^30 kg, the stars are distributed uniformlyin a sphere about the galactic center, and the Sun is at theedge of that sphere, estimate the number of stars in the Galaxy.
The Sun, which is 2.2 * 10^20 m from the centerof the Milky Way galaxy, revolves around that center once every2.5 * 10^8 years. Assuming each star in the Galaxy has a mass equalto the Sun’s mass of 2.0 * 10^30 kg, the stars are distributed uniformlyin a sphere about the galactic center, and the Sun is at theedge of that sphere, estimate the number of stars in the Galaxy.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The Sun, which is 2.2 * 10^20 m from the center
of the Milky Way galaxy, revolves around that center once every
2.5 * 10^8 years. Assuming each star in the Galaxy has a mass equal
to the Sun’s mass of 2.0 * 10^30 kg, the stars are distributed uniformly
in a sphere about the galactic center, and the Sun is at the
edge of that sphere, estimate the number of stars in the Galaxy.
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