Answer :
The frequency of the sound is 135 Hz and the wavelength of the sound is 2.59 m.
The string is vibrating at its second harmonic means that the standing wave pattern produced by the vibration has two nodes and two antinodes. This means that the wavelength of the sound is twice the length of the string. However, this is the wavelength of the standing wave, not the wavelength of the sound. The wavelength of the sound is determined by the speed of sound and the frequency of the vibration, as described above.
To find the wavelength of the sound, you can use the equation:
wavelength = speed of sound / frequency
Plugging in the values, you get:
wavelength = 340 m/s / 135 Hz = 2.59 m
The complete question is shown below.
A string of length 0.800 m is vibrating at 135 hz in its second harmonic and producing sound that moves at 340 m/s. What is true about the frequency and wavelength of this sound?
Learn more about frequency and wavelength, here https://brainly.com/question/13734243