You have one or more tires out of balance.
Yes, they do. They make a rumbling sound as they vibrate.
Something must vibrate, to make the air (or whatever else the sound travels through) vibrate.
Sound is vibration (of air ... as we humans perceive it). If a bell, tubular or otherwise, is made to vibrate then it will cause the adjacent air to vibrate ... and we call it sound.
Not in the range of human hearing.
The bow makes the strings vibrate, causing the string to make sound.
the sound wave will not make it to the ear drums. you wont hear the sound.
its your lips. Because you blow into it and it can be air!!
Only one way: you make them vibrate.
I don't think it would make a sound. it needs the full body to vibrate to make sound.
extreme cold temperatures might cause Mazda rf diesil to make knocking sound , however; it is recommended that you get it checked from the mechanic.
A seized gear can cause a knocking sound on a 1987 Nissan 5 speed transmission. A blown gasket can also cause this sound.
Bad ball joint