no sound never stops traveling!
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.
No, I have not tried traveling with a hula hoop before.
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.
A simple caution typically will not stop you from traveling abroad. However, some countries may deny entry to individuals with criminal records or cautions, so it is important to check the specific entry requirements of your destination before traveling.
Metal is a good conductor of sound, so it can actually amplify sound rather than stop it. To stop sound from coming through, you would need to use materials that can absorb or dampen sound waves, such as thick walls with insulation or acoustic panels.
Touch the string with your hand or finger.
No real limit, up to the speed of light. The Apollo astronauts traveled at ABOUT 32 times the speed of sound on their trip to the moon. That is the fastest yet.
Sound propagate in the form of waves. Waves have energy so they propagate through the medium. Unless you can reflect it back , or damp the sound wave using some or the other way, it is virtually impossible to "stop" a sound in mid air
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.
Presumably you mean sound traveling through water. Temperature affects the density of water, therefore the speed of sound in water, and pitch is frequency, so yes, temperature affects pitch.
NO so who ever wrote this can stop saying bad things about her
No, sound cannot travel faster than itself. Sound waves propagate at a specific speed in a given medium, such as air or water, and they cannot exceed that speed. The speed of sound varies depending on the medium through which it is traveling.