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doit_the_clown doit_the_clown
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7 years ago
Hydrostatic equilibrium tells us that

(a)   the pull of gravity inwards is balanced by the force of gas pressure outwards.
(b)   convectively-moving gas is always replaced by an equal amount of fresh gas.
(c)   the energy produced in the core of the Sun is balanced by the flow of energy from the Sun's surface into space.
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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
Good timing, thanks!
kaytee23
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Yesterday
Smart ... Thanks!
MAry1395
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2 hours ago
This helped my grade so much Perfect
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