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Author Question: The light-gathering power of a telescope varies with the ________ of the diameter of the lens or ... (Read 91 times)

imowrer

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The light-gathering power of a telescope varies with the ________ of the diameter of the lens or mirror.
 
  Fill in the blank(s) with correct word

Question 2

While all planet orbits are ellipses, the orbits of the eight large planets are relatively ________.
 
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nmyers

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Answer to Question 1

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Answer to Question 2

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