# Questions tagged [vibrations]

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### How can you change the resonant frequency of a solid guitar body?

I am trying to figure out if it would be possible to change the resonant natural frequency of a solid-body guitar. For example, let's say it resonates at 100 Hz and I want it to resonate at 200 Hz. Is ...
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### Can two standing waves combine to form a traveling wave?

Two traveling waves with equal and opposite wave-vectors form a standing wave, which is easy to prove. But what about combining two standing waves? Can we derive the velocity of the wave/disturbance ...
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### The resultant amplitude of $n$ equal oscillators

There is a summation related to adding effect of many equal equally spaced oscillators. I was reading the first few lines of Feynman's lectures on physics (chapter 30) and the way Feynman did the ...
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### How to determine the forced frequency response using Fourier transform?

I would like to determine the forced frequency response of the following vibrating system using the Fourier transform method: $$m\ddot{x} + c\dot{x} + k = f_0\sin(\omega t) \tag{1}$$ So by obtaining ...
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### Sound proofing: mass-spring-mass or mass-mass-spring?

I am trying to improve the sound proofing of a metal box. The box is made of steel of thickness $0.8 \;\mathrm{mm}$. I have additional sheets of steel with $3 \;\mathrm{mm}$ thickness for ...
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### Is there any way to obtain the velocity of the wave from the Chladni plate pattern?

Chladni pattern is generated because of the vibration of the membrane. One can produce the vibration from acoustic source or directly vibrating the plate. When I looked at the (equation 1) that is ...
54 views

### How do standing waves produce a note?

I just learned standing waves in class. And I know that fundamental frequency is the minimum frequency with which a standing can exist on a string. Then we talked about the role of standing wave in ...