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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 45 times)

vinney12

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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

The planet closest in size to Earth is
 
  A) Mercury.
  B) Venus.
  C) the Moon.
  D) Mars.
  E) Pluto.


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Hdosisshsbshs

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

C

Answer to Question 2

B


vinney12

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Reply 2 on: Jul 27, 2018
:D TYSM

ecabral0

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Reply 3 on: Yesterday
Gracias!

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