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Author Question: Different types of active galaxies are caused by different orientations of the central black hole's ... (Read 44 times)

SO00

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on: Jul 27, 2018
Different types of active galaxies are caused by different orientations of the central black hole's _______________.
 
  Fill in the blank(s) with correct word

Question 2

What is the use of the Doppler effect able to tell you about the motion of an object? What is it unable to tell you?
 
  What will be an ideal response?


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srodz

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

accretion disk

Answer to Question 2

The Doppler effect can only determine the part of the object's velocity that is directed towards, or away from the observer on a straight line. The Doppler effect cannot detect any part of the velocity that is perpendicular to the line of sight.


SO00

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

robbielu01

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Reply 3 on: Yesterday
:D TYSM

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