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Exemplo de Physics, 14.1 Speed of Sound, Frequency, and Wavelength
Problema e solução em inglês, como no livro original.
Calculate the wavelengths of sounds at the extremes of the audible range, 20 and 20,000 Hz, in conditions where sound travels at 348.7 m/s.
Resolva no papel primeiro. Depois abra a solução um passo de cada vez e pare assim que conseguir terminar sozinho.
To find wavelength from frequency, we can use .
(1) Identify the knowns. The values for v and f are given.
(2) Solve the relationship between speed, frequency and wavelength for .
(3) Enter the speed and the minimum frequency to give the maximum wavelength.
(4) Enter the speed and the maximum frequency to give the minimum wavelength.
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