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Author Question: One of the most important features that must be explained by models during the formation of the ... (Read 40 times)

swpotter12

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on: Jul 27, 2018
One of the most important features that must be explained by models during the formation of the galaxy is the ____.
 
  a. formation of spiral arms
 b. differences in age and metallicity of stars, especially in the halo
  c. formation of the central supermassive black hole
 d. accumulation of dark matter in the corona
 e. importance of spiral arms to star formation

Question 2

What is an example of the conservation of angular momentum?
 
  a. A volleyball player serves a ball and it follows a parabolic path.
  b. A baseball player strikes the ball with the bat
 c. A cross-country skier accelerates as she moves in a straight line
  d. A skateboarder maintains the same velocity in the same direction
  e. A diver brings his arms and legs closer to his body


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amandalm

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

b

Answer to Question 2

e


swpotter12

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Reply #2 on: Jul 27, 2018
Thank you!


amandalm

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Reply #3 on: Jul 27, 2018
Always glad to help...


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