Answer:
0.033 m/s
Step-by-step explanation:
The speed of the wave given only it's frequency and wavelength can be found by using the formula
![c = f * \lambda](https://img.qammunity.org/2022/formulas/physics/high-school/8uantnui1g628ir4wkcx32agb77ikrnu9r.png)
where
c is the velocity of the wave in m/s
is the wavelength in m
f is the frequency in Hz
From the question we have
c = 15 × 0.0022 = 0.033
We have the final answer as
0.033 m/s
Hope this helps you