In a particular application involving airflow over a heated surface, the boundary layer temperature distribution may be approximated as where y is the distance normal to the surface and the prandtl number, pr = cp/k = 0.7, is a dimensionless fluid property. if t=400k, ts = 300k, and u /ν = 5000 m-1 , what is the surface heat flux?

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.