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MAW321 | 15:37 Fri 28th Jul 2006 | Quizzes & Puzzles
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762mph is ?
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1226 Km/h ?
the speed of sound ?
Quite fast ?
sure ..... at sea level, but not elsewhere!!!
Hence the question mark. The speed of sound varies according to temperature as well, so any figure is going to be quite arbitrary.
or to put it another way ....
the speed of sound in atmospheric air is 340m/s or 762mph
How about Mach One

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