A science-fiction tale describes an artificial "planet" in
Chapter 18, Problem 88GP(choose chapter or problem)
The Sun rotates around the center of the Milky Way Galaxy (Fig. 5-46) at a distance of about 30,000 light-years from the center \(\left(1 / y=9.5 \times 10^{15} \mathrm{~m}\right)\). If it takes about 200 million years to make one rotation, estimate the mass of our Galaxy. Assume that the mass distribution of our Galaxy is concentrated mostly in a central uniform sphere. If all the stars had about the mass of our Sun \(\left(2 \times 10^{30} \mathrm{~kg}\right)\), how many stars would there be in our Galaxy?
Equation Transcription:
Text Transcription:
( 1/y=9.5 x 1015 m)
( 2 x 1030 kg)
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer