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Author Question: What does cosmological redshift do to light? A) stretches its wavelength B) makes it slow down ... (Read 65 times)

jace

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on: Jul 27, 2018
What does cosmological redshift do to light?
 
  A) stretches its wavelength B) makes it slow down
  C) makes it brighter D) makes all light infrared

Question 2

Will Mars ever appear to the unaided eye as large as the Moon at closest approach? Explain.
 
  What will be an ideal response?


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fwbard

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

A

Answer to Question 2

No. Mars is small, and even at closest approach it is so distant from Earth that it takes large telescopes with the best conditions to resolve surface features as small as 100 km across. With the unaided eye, Mars appears as a small point of reddish light shining more brightly than the stars.


jace

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Reply 2 on: Jul 27, 2018
:D TYSM

momolu

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Reply 3 on: Yesterday
Gracias!

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