To find the wavelength of a wave, we can use the formula relating wavelength, speed, and frequency:
[tex]\[ \text{Wavelength} = \frac{\text{Speed}}{\text{Frequency}} \][/tex]
Given:
- Frequency ([tex]\( f \)[/tex]) = 400 Hz
- Speed ([tex]\( v \)[/tex]) = 300 m/s
We plug these values into the formula:
[tex]\[ \text{Wavelength} = \frac{300 \text{ m/s}}{400 \text{ Hz}} \][/tex]
Perform the division:
[tex]\[ \text{Wavelength} = 0.75 \][/tex]
The wavelength of the wave is 0.75 (units not typed as instructed).