59 degrees Fahrenheit, 15 degrees Celsius
Because that is the definition of 1 atmosphere at standard temperature.
29.92 inches of mercury . 59 degree's F at sea level, is what most pilots use Dan In the air conditioning industry the standard day temperature is 70 degs F. Dan is correct...in avaition through out the world.
1 atmosphere, at sea level.
A pressure measurement, in comparison to atmospheric pressure on Earth, at sea level, near sea level, at standard temperature, usually expressing an absolute pressure (but does not have to be). 1 atmosphere absolute = 1.01325 bar absolute 1 atmosphere absolute = 101,325 pascal absolute 1 atmosphere absolute = 14.69595 psi absolute
Standard air pressure at sea level is 1 atmosphere, or 1 atm. This is the adopted standard atmosphere value, but sea level pressure will not always equal to this value due to changes in weather. 1 atm = 101 325 pascals = 1.01325 bars.
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.
Standard conditions, or standard temperature and pressure (STP) is the atmospheric pressure at sea level with temperature at zero degrees Celsius (273.15 Kelvin).
Standard conditions, or standard temperature and pressure (STP) is the atmospheric pressure at sea level with temperature at zero degrees Celsius (273.15 Kelvin).
Standard conditions, or standard temperature and pressure (STP) is the atmospheric pressure at sea level with temperature at zero degrees Celsius (273.15 Kelvin).
Standard temperature and pressure (STP) is a temperature 0ºC (32ºF) with the air pressure the same as at sea level.
Psia at sea level under standard conditions is equal to 14.7 pounds per square inch absolute. This value represents the atmospheric pressure exerted at sea level under standard conditions of temperature and pressure.
Standard conditions, or standard temperature and pressure (STP) is the atmospheric pressure at sea level with temperature at zero degrees Celsius (273.15 Kelvin).
Because that is the definition of 1 atmosphere at standard temperature.
29.92 inches of mercury . 59 degree's F at sea level, is what most pilots use Dan In the air conditioning industry the standard day temperature is 70 degs F. Dan is correct...in avaition through out the world.
120 kts given standard day at sea level
The temperature of boiling water at sea level is 100 The temperature of boiling water at sea level is 211.149°F.
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.