Understanding the Relationship

The speed of a wave (v) is directly related to its frequency (f) and wavelength (λ) by the following equation:

* v = fλ

Calculations

1. Given:

* Frequency (f) = 3.50 Hz

* Wavelength (λ) = 0.700 m

2. Substitute the values into the equation:

* v = (3.50 Hz) * (0.700 m)

3. Calculate the speed:

* v = 2.45 m/s

Answer:

The speed of the periodic wave disturbance is 2.45 m/s.