A sound wave travels at a speed of 340 m/s. If the wave lenght of wave is 1.4 km. What is the frequency of the wave?
speed = frequency * wavelength
keep your units consistent ... m / km
To find the frequency of the wave, we can use the equation:
Frequency = Speed of the wave / Wavelength
First, let's convert the wavelength from kilometers to meters. Since there are 1000 meters in 1 kilometer, we can multiply 1.4 km by 1000 to get the wavelength in meters:
Wavelength = 1.4 km * 1000 = 1400 meters
Now, we can substitute the values into the equation to find the frequency:
Frequency = 340 m/s / 1400 meters
Simplifying the equation, we get:
Frequency ≈ 0.2429 Hz (rounded to four decimal places)
Therefore, the frequency of the wave is approximately 0.2429 Hz.