i think it just vibrates
the denser the medium the lower the pitch
the shape and height causes it to vary with temperature,pressure,and the amount of water vapor in the atmosphere
pitch corresponds directly with frequency, so as frequency increases, so does pitch.
i think it just vibrates
Pitch
it is caused when the variation is hit on the guitar
pitch isn't used to find sound but pitch is if the sound is loud or soft. the pitch of music may vary.
doppler effect
The difference in pitch.
Every sound vibrates with a particular fundamental frequency. When you change the wavelength of a sound, you change the pitch of a sound.
Musical instruments vary pitch by changing the length, tension, or thickness of the vibrating element, such as a string or column of air, which affects the frequency of vibrations and produces different pitches.
The pitch of the propeller causes this noise.