This is my first posting ever ! I hope someone can point me in the right direction. Please also note, that I'm on a Music Technology course, but there are quite a lot of physics/maths!(adsbygoogle = window.adsbygoogle || []).push({});

Presenting Problem

The air pressure is found to be normal atmospheric pressure 2 metres from a sinusoidal sound source. At the same instant, at 2.5 metres distantance from the source, the air pressure has risen to a maximum value above normal atmopsheric pressure.

Assuming the air pressure between two points is only rising, what is the wavelength of the sound?

Formauls/Relevant Equations.

There are no formalus offered.

My Attempt

I've been able to ascertain that the wavelength is the distance pressure waves travel in the time it takes the source to complete one cycle.

I've tried to think of a sinusoidal wave, with the x axis as distance, and y axis as pressure. If the maximum pressure is at 2.5, is the average pressure is at 2.0, and if the pressure between the two are only rising, does this mean the answer is simply 0.5m?

I'm really grasping at straws here.

Elizabeth :uhh:

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# Homework Help: Calculate Wavelength from two sinusoidal waves

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