Fundamentally, a door is a moveable continuation of a wall. So it should have the same properties as the wall - sound, thermal, maybe opacity but maybe not, and so on.
A sound barrier is the construction product that minimizes the sound from travelling from one place to another. So it should be as massive as practical, and most important, there should be only tiny gaps round the edges.
A small crack round the edge of a door will allow the sound to get past the door. Equivalent to a one-quarter wavelength each side of the crack, multiplied by the length of the crack! So ensuring those cracks are sealed as much as possible is a good start. Most doors naturally have a labyrinth path at the edges, and that does aid.
particles in the air slow it down and cause it to stop eventually
Sound travels faster downwind. The speed at which sound travels is relative to the medium it is moving through. When sound is traveling upwind, you subtract the wind speed from the speed of sound. When it is traveling down wind you add the wind speed.
when the temperature of the air is 25 degrees Celsius, the velocity of a sound wave traveling through the air is approx.
Light is an example of an electromagnetic (EM) wave. EM waves are transverse waves, not compressional waves. Sound waves are compressional waves, so both sound traveling through air and water would be compressional. Waves traveling along a coiled spring compress the coils together and spread them apart, so this is also an example of a compressional wave.
An explosive sound caused by the shock wave preceding an aircraft traveling at or above the speed of sound.
no sound never stops traveling!
particles in the air slow it down and cause it to stop eventually
the door sound "BAM BAM"
When something is traveling at the speed of sound, 343 m/s, it is said to be traveling at mach 1. When traveling at twice the speed of sound it is traveling at mach 2 and so on. Wikipedia.org, 'The World's Encyclopedia' has an entire article on Mack Number. Refer to the related link in the Related Links section below.
Why is it something
340m/s
No pares viajar.
Sound travels faster downwind. The speed at which sound travels is relative to the medium it is moving through. When sound is traveling upwind, you subtract the wind speed from the speed of sound. When it is traveling down wind you add the wind speed.
unknown
The speed of sound is only 768mph.
The Doors
take off the doors.