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Whyaretheredarklinesinthespiralarmsofthewhirlpoolgalax

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36. Why are there dark lines in the spiral arms of the Whirlpool Galaxy? A) Supernova explosions blew away the material in those regions. B) They are regions where no stars formed because of an absence of matter. C) Black holes in those regions are prohibiting passage of light through. D) They are regions of dust that block the light of the stars behind them. E) There are imperfections on the mirror of the telescope that took the image.Correct Answer(s):DPoints Earned: 2.0/2.0
37. Which is not a fundamental particle?Points Earned: 2.0/2.0
38. 
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/College-Physics-11th-Edition-9781305952300-294/
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Chapter 2 / Exercise 2
College Physics
Serway/Vuille
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Which constellation is this?Points Earned: 2.0/2.0
39. What fraction of the energy density of the universe consists of dark matter?Points Earned: 2.0/2.0
40. Why don't we notice dark energy if it is everywhere? A) none of the above B) there is only a small amount per unit volume, but a large amount in total. C) it has no effect on the expansion of space. D) it is only a short-range force. E) it has a negative charge so it only interacts with positive charge.Correct Answer(s):BPoints Earned: 2.0/2.0
41. In general, the further away a galaxy is from the Milky WayPoints Earned: 2.0/2.0
42. How far away is most distant galaxy seen in the Hubble Deep Field?Points Earned: 2.0/2.0

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Term
Spring
Professor
MILLER,DAVIDEMAN
Tags
Astronomical, Correct Answer
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
College Physics
The document you are viewing contains questions related to this textbook.
Chapter 2 / Exercise 2
College Physics
Serway/Vuille
Expert Verified

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