Doppler effect at supersonic speeds

  • Thread starter dpsguy
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  • #1
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How can we apply the doppler effect when the source of sound is coming towards us at supersonic speeds?Is there a mathematical method for it?
 

Answers and Replies

  • #2
The velocity of the source is built into the Doppler formulas. Plug it in, see what happens. I imagine the source would hit you, you would die, then the sound would arrive and you'd be too dead to hear it.
 
  • #3
69
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The frequency comes out to be negative.How is this possible? o:) Assume that I am alive to think about this.
 
  • #4
The frequency is negative because the first noise you hear is the last one the source made. The source will always be emitting ahead of the last sound it made.
 

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