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The speed of sound is normally calculated using the values of a "standard atmospheric day." A "standard atmospheric day" refers to a sea level pressure of 29.92 in-Hg (1013.2 mb) and a temperature of 15°C (59°F). At standard day values, the speed of sound is 761 mph. Other speeds, such as those presented below, use values other than those relating to a "standard atmospheric day." They are not incorrect, they are simply based on values other than a "standard atmospheric day."
The speed of sound is 343 m/s or 1126.547 ft/s (768.095 mph) at a temperature of 20°C or 68°F.
The speed of sound has nothing to do with the atmospheric pressure at sea level, but the temperature is very important.
Scroll down to related links and read the short article "Speed of sound - temperature matters, not air pressure".
The air pressure and the air density are proportional to each other at the same temperature.
The speed of sound c depends on the temperature of air and not on the air pressure!
The humidity of air has some negligible effect on the speed of sound. The air pressure
and the density of air (air density) are proportional to each other at the same temperature.
It applies always p / ρ = constant. rho is the density ρ and p is the sound pressure.
Notice: The speed of sound is alike on a mountain top as well as at sea level with the same air temperature.
Google is not correct (look at the following link):
http://www.google.com/search?q=speed+of+sound+at+sea+level
Here is the answer of Google: "Speed of sound at sea level = 340.29 m/s".
This is no good answer, because they forgot to tell us the temperature,
and the atmospheric pressure "at sea level" has no sense.
The speed of sound in air is determined by the air itself. It is not dependent upon the sound amplitude, frequency or wavelength.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoThe speed of sound in air has really nothing to do with the sea level and its atmospheric pressure.
Speed of sound is dependent on the temperature.
Look at the link: "Speed of Sound in Air and the effective Temperature".
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What are the planes that can break the sound barrier?
There are a few supersonic airplanes that are extremely prominent in history are the X-1 and the SR-71 Blackbird, but today there are many other companies such as Concorde, international governments, and other large companies that house these kinds of aircraft.
What is the prescribed standard for noise level in industrial area during day time?
75 dB
How fast is mach 4.5 in mph?
'Mach ' is the speed of sound. This depends on air pressure and temperature. On a median day at sea level this is normally 761 mph. That figure can vary if air conditions are changed, but based on this common number, mach 4.5 is 3,324 mph.
What do you call an aeroplane that travels faster than the speed of sound?
With modern technology, there are many planes that can travel faster than the speed of sound, including many fighter planes and a few airliners.Any aircraft that flies faster than 1 Mach is faster than the speed of sound.Almost all modern day fighters travel at speeds in excess of the speed of sound. That includes the Russian MIGS from mig17 on, French Mirage, All US fighters.The planes which can fly at the speed of sound are SR-71, Mig-25, F-16, F-18, F-22, Sukhoi Su-47 and many others.
Rotational speed of earth in day and night is the same?
Yes, they are the same speed.
What is the speed of sound on a standard day at mean sea level?
Forget the sea level. Think only of the temperature. Speed of sound depends on the temperature. At 20°C the speed of sound is c = 343 m/s.
How fast is mach 2.2 in mph?
Mach 2.2 refers to 2.2 times the speed of sound. The speed of sound is variable, depending on pressure and temperature. The speed of sound on a standard day at sea level is approximately 762 miles per hour. Mach 2.2 on a standard day at sea level would be approximately 1676.4 miles per hour, or 27.94 miles per minute, or approximately half a mile per second.
What is the sound at sea level speed?
The speed of sound is normally calculated using the values of a "standard atmospheric day." A "standard atmospheric day" refers to a sea level pressure of 29.92 in-Hg (1013.2 mb) and a temperature of 15°C (59°F). At standard day values, the speed of sound is 761 mph. Other speeds, such as those presented below, use values other than those relating to a "standard atmospheric day." They are not incorrect, they are simply based on values other than a "standard atmospheric day."The speed of sound is 343 m/s or 1126.547 ft/s (768.095 mph) at a temperature of 20°C or 68°F.The speed of sound has nothing to do with the atmospheric pressure at sea level, but the temperature is very important.Scroll down to related links and read the short article "Speed of sound - temperature matters, not air pressure".The air pressure and the air density are proportional to each other at the same temperature.The speed of sound c depends on the temperature of air and not on the air pressure!The humidity of air has some negligible effect on the speed of sound. The air pressureand the density of air (air density) are proportional to each other at the same temperature.It applies always p / ρ = constant. rho is the density ρ and p is the sound pressure.Notice: The speed of sound is alike on a mountain top as well as at sea level with the same air temperature.Google is not correct (look at the following link):http://www.google.com/search?q=speed+of+sound+at+sea+levelHere is the answer of Google: "Speed of sound at sea level = 340.29 m/s".This is no good answer, because they forgot to tell us the temperature,and the atmospheric pressure "at sea level" has no sense.The speed of sound in air is determined by the air itself. It is not dependent upon the sound amplitude, frequency or wavelength.
What are the planes that can break the sound barrier?
There are a few supersonic airplanes that are extremely prominent in history are the X-1 and the SR-71 Blackbird, but today there are many other companies such as Concorde, international governments, and other large companies that house these kinds of aircraft.
What is the speed of mach 2.34?
If we consider the atmosphere on a standard day at sea level static conditions, the speed of sound is about 761 mph, or 1100 feet/second. source: http://www.grc.nasa.gov/WWW/K-12/airplane/sound.html
How far can sound travel in a day?
29,401,056 meters or 29,401 kilometersThis is from Google calculator:speed of sound at sea level = 340.29 m / s1 day = 86,400 secondsMultiply the two to get the number of meters sound travels in a day.
Why is it easier to break the sound barrier at higher altitudes?
The speed of sound changes only with temperature. The altitude and the atmospheric pressure has no influence. Usually the temperature goes down with higher altitude. Notice: The speed of sound changes with temperature and a little bit with humidity − but not with air pressure (atmospheric pressure). The words "sound pressure at sea level" are incorrect and misleading. The temperature indication, however, is absolutely necessary. The speed of sound in air at 20 degrees Celsius (68 degrees Fahrenheit) is 343 metres per second. That is 1126.547 feet per second.
How fast is a sonic boom?
A sonic boom is as fast as/faster than the speed of sound. It is also known as Mach 1)It varies with temperature. At sea level on a "standard day," the temperature is 59°F, and Mach 1 is approximately 761 mph.As the altitude increases, the temperature and speed of sound both decrease until about 36,000 feet, after which the temperature remains steady until about 60,000 feet. Within that 36,000-60,000 foot range, Mach 1 is about 661 mph. Because of the variation, it is possible for an airplane flying supersonic at high altitude to be slower than a subsonic flight at sea level.
Mach 1 mph?
761.2 mph at sea level, though it will vary depending on temperature and atmospheric composition.Mach 1 is the speed of sound, approximately 768 miler per hour, but it will vary based on density of air, caused by humidity.The unit Mach doesn't have a direct conversion to mph, because Mach 1 is the speed of sound (Mach 2 is 2 times the speed of sound etc.) and the speed of sound changes with altitude, while mph stay the same regardless of altitude and therefore causes the conversion between the two units to vary. For example, at sea level the speed of sound is 761.2 mph, but at 18 miles of altitude the speed of sound is 673.4mph. Got to the following webpage for a table of the speed of sound (Mach 1) at different altitudes.Mach 1 or any other Mach number, is not a specific speed.Mach numbers refer to the speed of sound in that medium.Mach 1 is about 760 mph at sea level (+ or - 4-5 degrees depending on the temperature). Mach 1 decreases as you go to higher elevations.At 30000 ft Mach 1 is 678 mph (589 knots, 1091 km/h) which is about cruising altitude for an average commercial airplane. (1 knot=1.15078 mph / 1 mph=0.868976 knots)At what density altitude? Speed of sound slows with altitude. 761.05 mph at sea level on a normal day(60 degrees F, 29.92 barometric press.)It changes with weather, atmospheric conditions and altitude. Most accept 657 miles per hour at 10,000 as the speed of sound.
How fast is the OH-58 helicopter?
120 kts given standard day at sea level
What is the Standard Day Temperature at sea level?
59 degrees Fahrenheit, 15 degrees Celsius
What is the prescribed standard for noise level in industrial area during day time?
75 dB
