Question

A mosquito beating its wings

produces sound waves with

a frequency of 700 Hz and a

wavelength of 0.5 m.

frequency: f=700 Hz

wavelength: X= 0.5 m

a. Find: wave speed: s

s=f

b. Substitute:

s = 700 x 0.5 = 350

c. Determine the units:

units of s = (units of f) x

(units of X)

(Hz) x (m)

= (1/s) x (m) = m/s

11. Use a Simple

Equation How fast are the

sound waves of the beating

mosquito wings traveling?

Answer 1

v = 350 m/s

Explanation:

Given that,

Frequency of sound waves of a mosquito beating, f = 700 Hz

Wavelength,
`\lambda=0.5\ m`

The speed of a wave is given by the formula as follows :

`v=f\lambda\\\\v=700\ Hz* 0.5\ m\\\\v=350\ m/s`

So, the sound waves of the beating mosquito wings traveling at speed of 350 m/s.