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Author Question: How do earthquakes allow us to model the structure of Earth's core? What will be an ideal ... (Read 40 times)

futuristic

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on: Jul 27, 2018
How do earthquakes allow us to model the structure of Earth's core?
 
  What will be an ideal response?

Question 2

Give an example of the Doppler effect being used in a baseball game.
 
  What will be an ideal response?


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Tonyam972

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

Examining the different seismic waves we find P and S waves are not recorded by all over the planet. There is a blind spot for S waves on the side of Earth opposite the earthquake, and there is a shadow zone part way around the surface from the earthquake. Since we know S waves cannot travel through liquid and P waves can, we conclude the Earth's core is liquid. Since P waves bend when they enter the liquid core, but some travel straight through, it implies there is a solid center to the liquid outer core.

Answer to Question 2

The Doppler gun can focus on the motion of the baseball, and give us the speed that the pitcher is delivering it to the plate.


futuristic

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Reply #2 on: Jul 27, 2018
TY


Tonyam972

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Reply #3 on: Jul 27, 2018
You're welcome


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