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Results tagged with acoustics
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user 368753
Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound. Applications of acoustics are for instance the audio and noise control industries.
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How can we describe the attenuation of sound in an expanding gas cloud in a vacuum?
For example, suppose a spaceship explodes. The sound of the explosion will travel in the expanding cloud of escaping gas. I gather that it should rapidly weaken and the pitch should drop, but I'd like …
- 1,805
5
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Would sound intensity weaken or not in 1D space air with perfect elastic collision?
Consider a Newton's cradle.
Now pull back the left-most ball and let it swing into the other four. What happens? The left-most ball sticks to the middle three and the right-most ball swings out to th …
- 1,805
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vote
Why sound gets weaker as it travels in air?
It's a combination of factors.
The inverse square law. As the sound travels further from its source, it spreads over an increasingly large area. As the source only provided finite energy, this natura …
- 1,805
4
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Accepted
Why energy spread between different surface areas are the same with sound waves?
The answer to this, much like your other questions, is simply that this is an approximation for an idealized system. You're asking about complexities beyond what the model is meant to handle.
This mod …
- 1,805
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Would sound get weaker in metal faster than in air over the same distance?
It's important to understand that the speed of sound in a medium is proportional to the allowed wavelengths within that medium. That is, a medium with a higher speed of sound will admit shorter wavele …
- 1,805