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Author Question: The Doppler effect can reveal the rotation speed of a star by the splitting of the spectral lines. ... (Read 104 times)

K@

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on: Jul 27, 2018
The Doppler effect can reveal the rotation speed of a star by the splitting of the spectral lines.
 
  Indicate whether the statement is true or false

Question 2

If the Sun-Earth separation were 10 AU instead of 1 AU, what would the ux of sunlight (energy per second per square meter) be at the Earth, compared to what it is today?
 
  A) 100 times more
  B) 10 times less
  C) about 3.16 (or the square root of 10 ) times less
  D) 10 times more
  E) 100 times less


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ally

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

FALSE

Answer to Question 2

E


K@

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Reply 2 on: Jul 27, 2018
:D TYSM

bassamabas

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

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