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Author Question: How is the geometry of an ellipse described? What will be an ideal ... (Read 62 times)

rl

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on: Jul 27, 2018
How is the geometry of an ellipse described?
 
  What will be an ideal response?

Question 2

The observation of the moons of Jupiter by Galileo Galilei suggested that:
 
  A) Earth could not move as its moon would be left behind.
  B) the Solar System was actually geocentric.
  C) Earth could move and keep its moon.
  D) the only center of motion was Earth.


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miss.ashley

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

The geometry of an ellipse is described by two simple numbers. The semi-major axis,a, is half of the longest diameter. The eccentricity,e, of an ellipse is half the distance between the foci divided by the semi-major axis. The eccentricity of an ellipse tells you its shape: Ifeis nearly equal to one, the ellipse is very elongated; ifeis close to zero, the ellipse is more circular.

Answer to Question 2

C


rl

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Reply 2 on: Jul 27, 2018
Excellent

rachel

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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