A sound wave traveling through dry air has a frequency of 15 Hz, a

Physics

2 answers:

Korolek [52]3 years ago

3 0

Answer:

Option B

Explanation:

Speed of a wave is denoted by:

v=fλ

where f is the frequency which is unchanged 15Hz and λ is the new wavelength which is 28m

v=fλ

$v=15(28)\\v=420m/s$

adell [148]3 years ago

3 0

Answer: b. 420 m/s

Explanation: ap3x

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