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Author Question: The celestial equator is a. a great circle. b. coplanar with the terrestrial equator. c. ... (Read 99 times)

jayhills49

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on: Jul 28, 2018
The celestial equator is
 a. a great circle.
  b. coplanar with the terrestrial equator.
  c. perpendicular to lines of right ascension.
  d. all of the above.

Question 2

For a specific element, photons of how many different energies could be emitted by electrons in the n = 2 level as they return to the n = 1 level?
 a. 3
  b. 4
  c. 2
  d. 1


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katara

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Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

d


jayhills49

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Reply #2 on: Jul 28, 2018
Thanks


katara

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Reply #3 on: Jul 28, 2018
Welcome :)


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