Compressor is unbalanced as the rpm's drop.
When central heating radiators make noise when first turned on, it is often due to air bubbles trapped in the system. As the hot water flows through the radiator, it displaces the air, creating a gurgling or banging sound. Bleeding the radiators to release the trapped air can help resolve the noise issue.
No, clouds do not make noise.
A knocking noise from the fridge when running can be caused by a few reasons such as the compressor mounting bolts being loose, the condenser fan hitting something, or the evaporator fan motor malfunctioning. It's best to have a professional technician inspect and diagnose the issue to determine the exact cause and needed repair.
No, light does not make noise when it travels through a vacuum.
Wind turbines make noise due to the aerodynamic forces acting on their blades as they rotate. The noise is primarily caused by the turbulence in the air flowing around the blades, as well as mechanical components such as the gearbox and generator. Additionally, the swooshing sound of the blades cutting through the air can also contribute to the overall noise level.
Might be a bad cv joint
A bad harmonic balancer can cause a knocking noise. The harmonic balancer doesn't actually produce the noise, but it can cause the noise in the engine.
many many things, Loose lug nuts which lets wheel make knocking noise. Engine will make a knocking noise if it is really low on oil. Some timing belts make a knocking, slapping noise just before they break.These are just a few examples . Have someone ride in car with you as you duplcate the noise and see if they can determine which part of the vehicle it is coming from.
anti roll bar
Bad ball joint
wierd
Having a bad rod bearing could cause a truck to make a loud knocking noise and shake when driving at high speeds. The engine having a coolant leak or an engine timing problem could also cause the knocking noise.
your cv boot has torn and needs replacement
A knocking/clicking noise when making a turn is a sign of a torn CV boot. In this case it's the driver side boot that is torn.
it's probably a rod knocking
The knocking that you are describing reminds me of a stuck universal joint. A bent axle usually wears tires out very fast more than making noise.
Where is the noise coming from? If its from the fenders or wheels is a much different problem than if its coming from the transaxle.