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Author Question: Compared to stars within the disk, halo stars a. orbit at random inclinations to the galactic ... (Read 79 times)

mia

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on: Jul 27, 2018
Compared to stars within the disk, halo stars
 
  a. orbit at random inclinations to the galactic plane b. orbit at different speeds
  c. orbit with paths crossing d. All of the other choices are correct.

Question 2

Absorption lines due to interstellar gas
 
  a. are wider than the lines from stars because the gas is hotter than most stars.
  b. are narrower than the lines from stars because the gas has a lower pressure than stars.
  c. indicate that the interstellar medium contains dust.
  d. indicate that the interstellar medium is expanding away from the Sun.
  e. None of the other choices are correct.


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JYan

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Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

b


mia

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Reply 2 on: Jul 27, 2018
Gracias!

atrochim

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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