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doit_the_clown doit_the_clown
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7 years ago
What is the Moon's approximate diameter if it subtends about 30 arc minutes in the sky and is at about 400,000 km from the Earth at the time of observation?
   A)  350 km    B)  35,000 km    C)  3500 km    D)  60 km
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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papachulopapachulo
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7 years ago
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