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doit_the_clown doit_the_clown
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7 years ago
How has the total amount of mass outside the orbit of the Sun been found?

(a)   By observing the orbital speeds of objects beyond the Sun's orbit.
(b)   By adding up the masses of all observed objects outside the Sun's orbit.
(c)   By comparing the intensity of hydrogen emission outside the Sun's orbit to that inside the Sun's orbit.
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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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papachulopapachulo
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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
larrybrads
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Thanks
sleinhi
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2 hours ago
This site is awesome
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