Scientists and Engineers, Ch.21 Superposition Theory: You will determine the speed of sound in air by measuring the wavelength of a standing wave for a sound of known frequency. A standing wave is what you get when two or more traveling waves combine in such a way that there are some places where there is no motion at all, and those places are called nodes. For any wave with wavelength λ (in m) and frequency f (in vibrations/s, or 1/s, or Hz), the speed of the wave (v, in m/s) is: λf = v A sound…
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