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doit_the_clown doit_the_clown
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7 years ago
What is believed to be the mass of the black hole candidate at the center of the galaxy M87?
A)   3 million solar masses   C)   300,000 solar masses
B)   3 billion solar masses   D)   300 solar masses
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Discovering the Universe

Discovering the Universe


Edition: 7th
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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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doit_the_clown Author
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7 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
my life
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Yesterday
Helped a lot
rhockeygirl
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2 hours ago
Smart ... Thanks!
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