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Author Question: Because of their mass, the threshold temperature for electrons is: A) higher than that of ... (Read 30 times)

bcretired

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Because of their mass, the threshold temperature for electrons is:
 
  A) higher than that of neutrons.
  B) lower than that of protons.
  C) higher than that of protons.
  D) lower than that of hydrogen.
  E) higher than that of hydrogen.

Question 2

It was the distribution of ________ that showed Harlow Shapley we were no where near the center of the Milky Way in the 1920s.
 
  A) planetary nebulae
  B) emission nebulae
  C) open clusters
  D) globular clusters
  E) supernova remnants



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reelove4eva

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Answer to Question 1

B

Answer to Question 2

D




reelove4eva

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