Question

2. A water wave has a speed of 4 m/s and 10

Answer 1

Answer: 12.12 m

Explanation:

We have the following data:

$v=4 m/s$ is the speed of the water wave

$f=\frac{10 waves}{30 s}=0.3 Hz$ is the frequency of the water wave

Now, the speed of a wave is given by the following equation:

$v=\lambda f$

Where $\lambda$ is the wavelength.

Isolating $\lambda$:

$\lambda=\frac{v}{f}$

$\lambda=\frac{4 m/s}{0.3 Hz}$

Finally:

$\lambda=12.12 m$ This is the water wave wavelength