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Author Question: How long does the sunspot cycle last, on average? A) between 25 and 35 days B) about seven years ... (Read 68 times)

fasfsadfdsfa

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on: Jul 27, 2018
How long does the sunspot cycle last, on average?
 
  A) between 25 and 35 days
  B) about seven years
  C) 365.25 days
  D) about 11 years
  E) about 76 years

Question 2

Contrast the sizes and membership of the Local Group and Virgo Cluster.
 
  What will be an ideal response?


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briezy

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

D

Answer to Question 2

Our Local Group is only 55 members, and about 1 Mpc across. The Virgo Cluster lies about 18.5 Mpc distant, is roughly 3 Mpc across, and contains more than 2500 galaxies.


fasfsadfdsfa

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Reply 2 on: Jul 27, 2018
Wow, this really help

vickybb89

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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