1a.) What is the approximate ratio (i.e. a number) of the momentum boundary layer as compared with the thermal boundary layer? 1b.) On the flat plate shown below, make a rough sketch of the momentum and energy boundary layers. Label the thickness of the momentum boundary layer as 8, and the thickness of the thermal boundary layer as dr. u X Steady flow over a flat plate Laminar boundary layer Low velocity (neglect viscous dissipation) Neglect body forces Constant thermophysical properties: Specific Heat of the fluid, Cp = 1.95 KJ/(Kg-K) Dynamic viscosity, = 0.253 Pa-s Thermal conductivity of the fluid, k = 1.43 W/(m-K) Density of the fluid, p = 0.875 Kg/m Free-stream velocity, U = 20 m/s Free-stream temperature, T = 100 C Constant heat flux from plate surface, qw = 2000 W/m