Consider a windshield of length 800 mm and thickness 6 mm and driving conditions for which the vehicle moves at a velocity of 70 mph in ambient air at [infinity] -15ºC. From laboratory experiments performed on a model of the vehicle, the average convection coefficient on the outer surface of the windshield is known to be correlated by an expression of the form , where . Air properties may be approximated as 0.023 W/m·K, 12.5 × 10-6 m2/s, and 0.71. If 10ºC and [infinity] 50ºC, what is the smallest value of the inside convection coefficient required to prevent condensation on the inner surface?