Chapter 14.2, Problem 17PP

To determine

The speed of periodic wave.

Answer to Problem 17PP

  $2.45m/s$

Explanation of Solution

Given info:

Frequency, $f=3.50\text{Hz}$

Wavelength, $\lambda =0.700m$

Formula used:

The relationship of the sound speed, frequency and wavelength of the speed is the similar as for all waves.

  $v=f\lambda$

Where,

  $v$ is the sound speed, $f$ is its frequency and $\lambda$ is its wavelength.

Calculation:

  $v=f\lambda$

Substitute the values and solve:

  $v$

  $=\left(3.50Hz\right)\left(0.700m\right)$

  $v$

  $=2.45m/s$

Conclusion:

Therefore, speed of a periodic wave is $2.45m/s$ .