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An important dimensionless parameter concerned with very high-speed flow is the Mach number, defined as V/c, where is the speed of the object such

An important dimensionless parameter concerned with very high-speed flow is the Mach number, defined as V/c, where is the speed of the object such as an airplane or projectile, ande is the speed of sound in the fluid surrounding the object. For a projectile traveling at 800 mph through air at 50 F and standard atmospheric pressure, what is the value of the Mach number?

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