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Author Question: Sunspots often appear in pairs. a. True b. False Indicate whether the statement is true or ... (Read 60 times)

Mimi

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on: Jul 27, 2018
Sunspots often appear in pairs.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

How did the geocentric model and the heliocentric model of the universe explain retrograde motion?
 
  What will be an ideal response?


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BUTTHOL369

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Reply #1 on: Jul 27, 2018
Answer to Question 1

True

Answer to Question 2

The geocentric model relied on epicycles to explain retrograde motion. In the heliocentric model, Earth moves faster along its orbit than the planets that lie farther from the Sun. Consequently, Earth periodically overtakes and passes these planets. The result is retrograde motion as observed from Earth.


Mimi

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Reply 2 on: Jul 27, 2018
Excellent

dantucker

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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