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Ryan37sport Ryan37sport
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2 weeks ago

What did Kepler base his three laws of planetary motion on?



the idea that an ellipse is the perfect shape



precise observations of the apparent motions of planets



Newton's three laws of motion



the observation of the phases of Venus

Textbook 
ASTRO

ASTRO


Edition: 3rd
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satish1015satish1015
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Ryan37sport Author
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2 weeks ago
Brilliant
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Yesterday
Good timing, thanks!
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2 hours ago
Thanks for your help!!
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