Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test.
If 3 sound waves pass a microphone in 4.0 s while traveling 5.0 m/s, what is the wavelength of the waves? (6.67 m)
L = V*T = 5m/s * (4/3)s = 6.67 m.
NOTE: 4/3 is the time for 1 wave.
To find the wavelength of the sound waves, you can use the formula:
Wavelength = Speed / Frequency
However, in this question, the frequency is not given directly. But we can calculate it by using the fact that the number of waves passing a certain point in a given time is equal to the frequency.
Given that 3 sound waves pass the microphone in 4.0 seconds, we can calculate the frequency:
Frequency = Number of Waves / Time
Frequency = 3 / 4.0 s = 0.75 Hz
Now that we have the speed (5.0 m/s) and the frequency (0.75 Hz), we can substitute these values into the formula:
Wavelength = 5.0 m/s / 0.75 Hz
Wavelength = 6.67 m (rounded to two decimal places)
So, the wavelength of the sound waves is 6.67 m.