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Author Question: Different types of active galaxies are caused by different orientations of the central black hole's ... (Read 19 times)

SO00

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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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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
Excellent


rachel

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Reply 3 on: Yesterday
Wow, this really help

 

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