Problem $9$: energy equation $(10$ pts $).$ Consider an airplane flying at a standard altitude of $5$ km with

a velocity of $270\frac{m}{s}.$ At a point on the wing, the velocity is $330\frac{m}{s}.$ Calculate the pressure at this point.

Hints: $1.$ Is this incompressible or compressible flow?; $2.$ The specific heat of air at constant pressure

$C_p=1\mathrm{.}005k\frac{J}{k}g-K$;$3.=1\mathrm{.}4$;$4.$ For pressure and temperature at $5$ km altitude, refer to the standard

atmosphere table in Appendix