$5\mathrm{.}9.$ Consider a wing mounted in the test section of a subsonic wind tunnel. The velocity of the airflow is $160f\frac{t}{s}.$ If the velocity at a point on the wing is $195f\frac{t}{s},$ what is the pressure coefficient at this point?

$5\mathrm{.}10.$ Consider the same wing in the same wind tunnel as in Prob. $5\mathrm{.}9.$ If the testsection air temperature is $510R$ and the flow velocity is increased to $700f\frac{t}{s},$ what is the pressure coefficient at the same point?

The question i needed it to be solve is question $5\mathrm{.}10$ but it is related to $5\mathrm{.}9.$