Understanding the Relationship
* Wavelength (λ): The distance between two consecutive crests or troughs of a wave (0.4 m in this case).
* Frequency (f): The number of waves passing a point per second (2 Hz in this case).
* Wave Speed (v): The distance a wave travels in one second.
Formula
The relationship between these three is:
* v = fλ
Calculation
1. Substitute the values:
v = (2 Hz) * (0.4 m)
2. Calculate:
v = 0.8 m/s
Answer
The speed of the water waves is 0.8 meters per second.