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Author Question: The RR Lyrae stars all have periods of A) less than a second. B) several minutes. C) several ... (Read 55 times)

neverstopbelieb

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on: Jul 27, 2018
The RR Lyrae stars all have periods of
 
  A) less than a second.
  B) several minutes.
  C) several hours.
  D) several days.
  E) several weeks.

Question 2

At decoupling, the electrons and protons were made from neutron decay.
 
  Indicate whether the statement is true or false


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aliotak

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

C

Answer to Question 2

FALSE


neverstopbelieb

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

steff9894

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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