Question

A wave vibrates up and down 22 cycles in 7 seconds with a wave speed of 57. Calculate the

Answer 1

Answer:

18.14m

Explanation:

Given parameters:

Frequency = $\frac{22}{7}$cycles/s

Speed of wave = 57m/s

Unknown:

Wavelength  = ?

Solution:

The speed of a wave is related to frequency and wavelength using the expression below;

         V = f x λ

V is the speed of the wave

f is the frequency

λ is the wavelength

  Insert the parameters and find λ;

        57  =  $\frac{22}{7}$ x λ

       λ = 57 x $\frac{7}{22}$   = 18.14m