Consider laminar flow of water over a wide flat plate maintained at a uniform temperature of 50°C as shown in the figure. The freestream velocity and temperature of water are 1.0 m/s (parallel to the plate) and 20°C, respectively. The distance x from the leading edge, at which the thermal boundary layer thickness δ_T=0.01 m, is ______ m (rounded off to 1 decimal place). GIVEN:
kinematic viscosity: ν=1.0×10^-6 m²/s
Prandtl number: Pr=7.01
velocity boundary layer thickness: δ_H=4.91x/√(νx/V)