In a river there is a very smooth, low-speed flow of water. this flow can be considered to be: a)- turbulent b)-free convection c)- natural convection d)-sonic laminar

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)