Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 • 1011 solar masses. A star orbiting on the galaxy’s periphery is about 6.0 • 104 light years from its center.what is the orbital period in years?

Write the given values with suitable variables. M=8×1011 MS=8×10111.989×1030 kg=1.59×1042 kgr=6×104 light yr=6×1049.461×1015 m=5.68×1020 m Here, M is the mass and r is the orbital radius.The orbital time period of the star is determined as follows. T=2πr3GM=2π5.68×1020 m36.674×10-11 Nm2/kg21.59×1042 kg=8.3×1015 s1 year365×24×3600 s=2.63×108 year=

Answered: Astronomical observations of our Milky…

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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Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 • 10¹¹ solar masses. A star orbiting on the galaxy’s periphery is about 6.0 • 10⁴ light years from its center.

what is the orbital period in years?

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