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Author Question: The size of a galaxy's central black hole is proportional to the mass of its disk. a. True b. ... (Read 109 times)

c0205847

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on: Jul 27, 2018
The size of a galaxy's central black hole is proportional to the mass of its disk.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

An atom must emit a photon when a(n) ____.
 
  a. electron moves from a lower to a higher energy level
  b. proton moves from a lower to a higher energy level
  c. proton moves from a higher to a lower energy level
  d. electron moves from a higher to a lower energy level
  e. atom becomes ionized


amit

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

False

Answer to Question 2

d


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c0205847

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Reply #2 on: Jul 27, 2018
Thanks


amit

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Reply #3 on: Jul 27, 2018
Welcome :)


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