8. Find the Mac number when an aeroplane is flying at 900 km/hour through still air having a pressureof 8.0 N/cm and temperature -15°C. Take k = 1.4 andR= 287 J/kg K. Calculate the pressure, tempera-(Delhi University, 1986)[Ans. 0.776, 11.9 N/cm, 16.06°C, 1.434 kg/m]ture and density of air at the stagnation point on the nose of the plane.

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Answered: 8. Find the Mac of 8.0 N/cm an ture and…

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8. Find the Mac of 8.0 N/cm an ture and densit

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Question

8. Find the Mac number when an aeroplane is flying at 900 km/hour through still air having a pressure
of 8.0 N/cm and temperature -15°C. Take k = 1.4 andR= 287 J/kg K. Calculate the pressure, tempera-
(Delhi University, 1986)
[Ans. 0.776, 11.9 N/cm, 16.06°C, 1.434 kg/m]
ture and density of air at the stagnation point on the nose of the plane.

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