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doit_the_clown doit_the_clown
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7 years ago
How many neutrinos from supernova SN 1987A were detected on the Earth?
   A)  None    B)  About 400,000    C)  8 × 1017    D)  20
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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7 years ago
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Hi! I would like to see the answer. Therefore, I am writing a comment.
Use solar panels extensively to save our planet.
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