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Author Question: 21-cm radiation is a result of an electron in hydrogen flipping its spin direction. Indicate ... (Read 85 times)

skymedlock

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on: Jul 27, 2018
21-cm radiation is a result of an electron in hydrogen flipping its spin direction.
 
  Indicate whether the statement is true or false

Question 2

We have observed a comet strike Jupiter.
 
  Indicate whether the statement is true or false


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Zebsrer

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

TRUE

Answer to Question 2

TRUE


skymedlock

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

frankwu0507

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Reply 3 on: Yesterday
:D TYSM

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