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Mach no. is dependant on ambient air temp which is associated with a given altitude. As one ascends the temp drops so does the mach no. Eg. In a standard atmosphere (ISA - international std atmosphere) sea level temp is 15 degrees C or 59 degrees F. Temp decreases at 2 degrees celcius per 1000' therefore for example, in a standard atmosphere the temp at say 30000' would be: 15C at 0' -45C at 30000' Plug that into the equation to find the Local Speed of Sound (LSS) which is: LSS = 38.945 (square root of)/ Outside air temp + Absolute temp being 273A or 273K LSS = 38.945 x 228 LSS = 588 kts at 30000' So if one is doing 480knots at 30000' on a standard, day they are doing 480/588 = Mach0.82
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Do the number of particles in an object affect its thermal energy but not its temperature?
Yes, the number of particles in an object does affect its thermal energy, as thermal energy is directly proportional to the number of particles. However, the number of particles does not affect its temperature, as temperature is a measure of the average kinetic energy of the particles.
What is the Mach number at the throat section of a converging diverging nozzle?
The Mach number at the throat section of a converging-diverging nozzle is 1. This is where the flow reaches its sonic condition, known as choked flow.
What does Mach 3.2 mean?
Mach 3.2 refers to traveling at 3.2 times the speed of sound. The speed of sound varies depending on altitude and temperature, but at sea level and room temperature, it is approximately 343 meters per second. Therefore, Mach 3.2 would be about 1,100 meters per second.
A plane is traveling at Mach 0.92 through air at a temperature of 0C. What is the plane's speed?
Mach is a non standard unit based on the speed of sound through the medium, Mach 1 is the speed of sound, and 0.92 Mach is 92% the speed of sound which is approximately 313.0668 m / s or 1127.04048 km/h or 700.310487 mph.
What the speed of sound in air?
Technically, the speed of sound in air is known as Mach numbers, Mach 1, Mach 3 and so on. These do not correspond with kph (or mph), for the Mach number is related to the speed of sound in that atmosphere.The speed of sound drops as the altitude increases, for the molecules are farther apart. So a plane will have to travel less km/h at 20 000m (295m/s) than at sea level (340 m/s) for Mach 1.If you look up speed of sound in wikipedia, you'll find a nice pic of a plane breaking the sound barrier.
What happens to Critical Mach number with altitude?
Critical Mach Number has nothing (directly) to do with altitude. Mach Number has everything to do Temperature,
The ratio of speed of a body to the speed of sound is called?
the Mach number
Who invented the mach number?
Ernst Mach .
What is called the ratio of gas velocity and the speed of sound in the gas at the same condition of pressure and temperature?
The Mach number
What is the TM number for mach punch?
Mach Punch is not a TM so therefore it does not have a TM number.
What is Lower critical mach number?
Lower critical mach number may be defined as the highest subsonic mach number below which the entire flow over it is subsonic. vijayaprakaash
Do the number of particles in an object affect its thermal energy but not its temperature?
Yes, the number of particles in an object does affect its thermal energy, as thermal energy is directly proportional to the number of particles. However, the number of particles does not affect its temperature, as temperature is a measure of the average kinetic energy of the particles.
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.
How fast is Mach 0.85?
Mach number is dependent on a number of factors. Factors such as air density or altitude will change the Mach number. At approximatively 45 000 ft Mach 0.85 =289.2361 m/s = 1041.25 km/h = 647.0028 mph
What is 3400 kmph to mach speed?
The Mach number for the speed of an object travelling through a particular medium is the ratio of the object's speed relative to the speed of sound through the same medium. The speed of sound through any medium depends on the nature and density of the medium and, as a result, so does the Mach number. In air, the Mach ratio is mostly dependent on temperature and humidity and, to a lesser extent, on altitude. Generally, Mach 1 (in air, at standard sea level conditions, and at 15 deg C) is approx 1223 kmph. So 3400 kmph would be approx 2.8 Mach. But 3400 kmph in water would be a very much lower Mach number.
What is the measurement mach?
Mach is the speed of sound in that medium, and is known as Mach 1. It will vary according to pressure and temperature. [More correctly, it is the dimensionless number relating the speed of an object to that of sound in that medium.] Mach does not have units associated with it, such as mph or kmph.
How fast is Mach 3.3 measured in miles per hour?
The speed represented by Mach is not a constant; it is dependent on temperature and atmospheric composition.Mach number is the speed of an object moving through air, or any fluid substance, divided by the speed of sound as it is in that substance.At a temperature of 15 oC and at sea level, the speed of sound is 761.2 mph.
