- #1
dpsguy
- 69
- 0
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?
Doppler effect at supersonic speeds
- Thread starter dpsguy
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Homework Help Overview
The discussion revolves around the application of the Doppler effect in scenarios where the sound source is moving towards an observer at supersonic speeds. Participants explore the implications of this situation on frequency perception.
Discussion Character
- Exploratory, Conceptual clarification, Assumption checking
Approaches and Questions Raised
- Participants question how to mathematically apply the Doppler effect under these conditions and discuss the implications of negative frequency results.
Discussion Status
Some participants have offered insights into the mathematical aspects of the Doppler effect, while others are exploring the conceptual implications of negative frequencies and the sequence of sound perception in relation to the source's motion.
Contextual Notes
There is an underlying assumption about the nature of sound propagation and the consequences of supersonic speeds on sound waves, as well as a humorous acknowledgment of the fatal implications of such a scenario.
- #2
El Hombre Invisible
- 691
- 0
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
dpsguy
- 69
- 0
The frequency comes out to be negative.How is this possible? 
Assume that I am alive to think about this.
Assume that I am alive to think about this.- #4
El Hombre Invisible
- 691
- 0
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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