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lina2011 [118]
3 years ago
10

a sound wave travels through the ground, with a wavelength of 79.3m and a period of 0.615 s. how fast is the wave travelling?

Physics
1 answer:
12345 [234]3 years ago
3 0

Answer:

The speed of the wave is 128.94 m/s

Explanation:

Use the relationship between wavelength (lambda) and frequency (f)  that are in a mutually reciprocal relationship via the speed of propagation:

\lambda = vT\implies v = \frac{\lambda}{T}\\v = \frac{79.3m}{0.615s}=128.94\frac{m}{s}

The speed of the wave is 128.94 m/s

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