Difference between revisions of "Mach number"
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| − | '''Mach number''' (Ma) (pronounced in British English with a Germanic ''ch'', as "mack" or "mark" and as "mock" in American English) is defined as a ratio of the speed of an object or flow relative to the speed of sound in the medium through which it is travelling. | + | [http://sneezingpops.110mb.com/poker-col/ poker col diavolo] [http://some-omeelse.110mb.com/data/annuncio-donna.htm annuncio donna single] [http://unremig.110mb.com/www-annunci/ www annunci] [http://mouse-zae.110mb.com/base-musicale.htm base musicale la gatta] [http://lazythoughts.110mb.com/lib/eleonora-di/ eleonora di miele] [http://gekijuls.110mb.com/lavoro-a/ lavoro a budapest] [http://nationavce.110mb.com/view/usb-.htm usb 1 gb mp3] [http://lazythoughts.110mb.com/lib/www-cdgirl/ www cdgirl com] [http://some-omeelse.110mb.com/data/superenalotto.htm superenalotto 3000] [http://some-omeelse.110mb.com/data/de-roud.htm de roud] [http://gekijuls.110mb.com/foto-aerei/ foto aerei] 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[http://mouse-zae.110mb.com/publishing-house.htm publishing house] [http://yeeden.110mb.com/data/video-porno/ video porno grtatis] [http://nationavce.110mb.com/view/effetti-droghe.htm effetti droghe leggere] [http://some-omeelse.110mb.com/data/farmacia-fiore.htm farmacia fiore] [http://slavkamolot.110mb.com/library/fondo-pensione/ fondo pensione aperto] [http://dialed.110mb.com/small/samsung-z/ samsung z560] [http://funk-mastah-ion.110mb.com/data/mustek.htm mustek 4000] [http://gekijuls.110mb.com/geforce/ geforce 6200 256] [http://dialed.110mb.com/small/ddr-ram/ ddr ram 2700 333] [http://mouse-zae.110mb.com/sodimm.htm sodimm 3200] '''Mach number''' (Ma) (pronounced in British English with a Germanic ''ch'', as "mack" or "mark" and as "mock" in American English) is defined as a ratio of the speed of an object or flow relative to the speed of sound in the medium through which it is travelling. |
The Mach number is commonly used both with objects travelling at high speed in a fluid, and with high-speed fluid flows inside channels such as nozzles, diffusers or wind tunnels. As it is defined as a ratio of two speeds, it is a dimensionless number. At standard sea level conditions, Mach 1 is 1,225 km/h (761.2 mph) in the atmosphere. | The Mach number is commonly used both with objects travelling at high speed in a fluid, and with high-speed fluid flows inside channels such as nozzles, diffusers or wind tunnels. As it is defined as a ratio of two speeds, it is a dimensionless number. At standard sea level conditions, Mach 1 is 1,225 km/h (761.2 mph) in the atmosphere. | ||
Revision as of 15:17, 25 August 2007
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The Mach number is commonly used both with objects travelling at high speed in a fluid, and with high-speed fluid flows inside channels such as nozzles, diffusers or wind tunnels. As it is defined as a ratio of two speeds, it is a dimensionless number. At standard sea level conditions, Mach 1 is 1,225 km/h (761.2 mph) in the atmosphere.
Since the speed of sound increases as the temperature increases, the actual speed of an object travelling at Mach 1 will depend on the fluid temperature around it.
The Mach number is named after Austrian physicist and philosopher Ernst Mach.
A longer and more technical version of the article on Wikipedia