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Author Question: Kepler's idea that planets move in ellipses around the sun is best classified as A) a fact. B) ... (Read 62 times)

Davideckstein7

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on: Jul 29, 2018
Kepler's idea that planets move in ellipses around the sun is best classified as
 
  A) a fact.
  B) an incorrect fallacy.
  C) an experimental observation.
  D) a useful theory.
  E) a hallucination.

Question 2

A spaceship is moving between two distant stars at 0.932c. To someone in the ship, the distance between the two stars appears to be 26.9 light-years (ly). What is the distance between the stars in the rest frame of the stars?
 
  A) 74.2 ly
  B) 9.75 ly
  C) 21.5 ly
  D) 56.5 ly


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nicoleclaire22

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Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

A


Davideckstein7

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Reply #2 on: Jul 29, 2018
TY


nicoleclaire22

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Reply #3 on: Jul 29, 2018
You're welcome


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