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Author Question: How did Harlow Shapley determine where the center of the galaxy lies? a. He plotted the ... (Read 88 times)

olgavictoria

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on: Jul 27, 2018
How did Harlow Shapley determine where the center of the galaxy lies?
 
  a. He plotted the distribution of open clusters.
  b. He plotted the distribution of globular clusters.
  c. He made star counts in every direction of the galactic disk.
  d. He measured the amount of dust obscuration in every direction of the galactic disk.

Question 2

________ is the thermonuclear fusion of hydrogen to form helium operating in the cores of massive stars on the main sequence.
 
  a. The CNO cycle
  b. The proton-proton chain
  c. Hydrostatic equilibrium
  d. The neutrino process
  e. None of the above


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covalentbond

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

b

Answer to Question 2

a


olgavictoria

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Reply 2 on: Jul 27, 2018
:D TYSM

Bigfoot1984

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Reply 3 on: Yesterday
Excellent

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