The flow of an ideal gas may be considered incompressible
Chapter 11, Problem 11.21(choose chapter or problem)
The flow of an ideal gas may be considered incompressible if the Mach number is less than 0.3. Determine the velocity level in ft/s and in m/s for Ma = 0.3 in the following gases: (a) standard air, (b) hydrogen at \(\mathrm{68~^\circ F}\).
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