Speed of Sound

If accelerating to the speed of sound, the subsonic.

One person holds the gun and the stopwatch. The other person walks away, unrolling the tape measure ast they go - and stops at an agreed distance. The first person fires the gun - and starts the stopwatch. The second person signals when they hear the shot - and the stopwatch is halted. Divide the time taken for the shot to be heard by the measured distance - and you have the speed of sound.

Because sound waves are mechanical vibrations of material matter. You can't

have sound waves in a space where there's no material to vibrate.

You would then hear some sound sooner than others.

Excellent question !

The answer is: Because, even though it's called a "force", it's not really a force, in
the proper sense of that word.

Since the early experimenters in electricity who made up the label, the concept of
'force' has been pretty well taken over by Physics, to mean actual physical force,
measured in Newtons, capable of accelerating masses, maintaining orbits, etc.
But we still humor the electrical guys, by keeping their old, quaint, comfortable
label for the magnitude of the fields that make electrons move.

There's still room for tradition in language, even where a computer might protest
its misuse. So we still have "electromotive force", "forceful personality", "a force
for law and order", and "La Forza del Destino".

That is because there are different kinds of glass and wood whose structures are different. As a result sound can travel faster through some types of glass than other types, and similarly with wood.

yes

It was the same speed. It generally travel with 340ms-1 speed.

The wavelength of ultrasound can be calculated using the formula: wavelength = speed of sound / frequency. Assuming the speed of sound in human tissue is about 1540 m/s, the wavelength of 3.5 MHz ultrasound would be approximately 0.44 mm.

"ms" in this case is short for "meters per second". It means that sound advances that many meters every second.

As the temperature of the medium increases, so does the speed of sound. As the temperature decreases the speed of sound decreases (this is true for air, at least).

To calculate speed of sound in air:

V = 331 + 0.59T

where T is the air temperature in degrees C.

the Concord

the Concord

It is generally high in solids. Greatest speed is in the metals.

Yes, easily. That is why most bullets make that characteristic "crack" as they're fired. That's the sound barrier being broken. Ever heard a whip being cracked before? It sounds exactly like a gunshot for the reason that it's the same thing happening.

That is why so called "silencers" sound nothing like they do in the movies. They are not that "silent" at all because you cannot get rid of the sonic boom. However, some ammo is subsonic, meaning it is designed to go slower than the speed of sound. Subsonic ammo/rounds do not make the distinctive "whipcrack" sound as far as I know.

The speed of light in vacuum is 299,792,458 m/s usually rounded to 300,000 km/sec.

The speed of sound at sea level is 343 m/s.

The difference is 299,792,115 m/s.

That's 99.999 886 % of the speed of light, and may also be rounded to 300,000 km/sec.

because there is water also moving in it and sound also moves in it so thats why water vapours affect our sound speed

Yes - the amount of absorption can depend on the frequency.

It is all about the nature. Temperature causes the sound speed.

The shock wave is called SONIC BOOM.

The speed of sound in air changes clearly with temperature, a little bit with humidity − but not with air pressure (atmospheric pressure).
Statement: The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature, because the ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude.
Notice: The ratio p_ / ρ (static air pressure to air density) is really always constant.

As an aircraft reaches the speed of sound, shock waves build up, creating increase in drag, loss of lift, and loss of control and a sonic explosion is heard.

By unit of length and distance and conversion ,we can say that units are used to measure length

are meters ,cm,dm,dam,mm

The speed of sound is dependent on the temperature and not on the air pressure. At 20 degrees celsius the speed of sound is 343 m/s.

Jacqueline Cochran flew an F-86 Sabre fighter plane in 1953-becoming the first woman to fly faster than sound. She outdid herself in 1964 when she flew faster than twice the speed of sound. In total, it is believed that Cochran set more than 200 records during her career.