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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Tsync Tsync
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8 years ago
What is the best description of the Earth's rotation over its entire history?
A) It undergoes abrupt changes, as the magnetic variations show.
B) It has periodically reversed directions, as the magnetic polarity reversals show.
C) It has been constant over the entire history of the solar system.
D) It has slowed down very gradually at about .0015 seconds per century.
E) It has sped up at about .013 seconds per century.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
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Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
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#2
8 years ago
This astronomy class is killing me, thanks for chiming in and answering
Minoring in physics
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#3
8 years ago
Slight Smile
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#4
4 years ago
thank you
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