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doit_the_clown doit_the_clown
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7 years ago
When observing planetary motions from the Earth, the phrase “direct motion” refers to
A)   a slow westward motion of the planet from night to night compared to the background stars.
B)   the apparent westward motion of the planet (and the Sun, the Moon, and stars) across the sky due to the rotation of the Earth.
C)   the motion of the planet directly toward or away from the Earth in certain parts of the planet's orbit.
D)   a slow eastward motion of the planet from night to night compared to the background stars.
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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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doit_the_clown Author
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7 years ago
Thanks for your help!!
lierac00
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Yesterday
You make an excellent tutor!
lipop
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2 hours ago
Brilliant ツ
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