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Author Question: The crossover point from radiation to matter domination occurred: A) when the strong force ... (Read 33 times)

soccerdreamer_17

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on: Jul 27, 2018
The crossover point from radiation to matter domination occurred:
 
  A) when the strong force separated from the other two forces.
  B) with the emission of the cosmic background radiation.
  C) about 50,000 years after the Big Bang, at a temperature of about 16,000 K.
  D) with the creation of neutrons and protons, at about 1013 K.
  E) with the creation of electrons and positrons at about 6  109 K.

Question 2

The core of the Milky Way, Sagittarius A, is a strong radio source in the sky.
 
  Indicate whether the statement is true or false


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canderson530

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

C

Answer to Question 2

TRUE


soccerdreamer_17

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


canderson530

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


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