Question

HELP!
Cicadas produce a buzzing sound that has a wavelength in air of 2.69m. If the speed of sound in air is 346 m/s, what is the frequency of the sound produced by a cicada? What is its period?

Answer 1

\[v = \lambda f\]

so just plug in.

Answer 2

but what about the period?

Answer 3

The period is always

\[T = \frac{ 1 }{ f }\]

Answer 4

oh ok well thank you soo much