In a wind tunnel air at 20°C and 0.1 bar flows at a velocity of 265 m/s over a model plane wing. The wing can be idealized as a 0.1 m long flat plate. The surface of the plate must be maintained at...

In a wind tunnel air at 20°C and 0.1 bar flows at a velocity of 265 m/s over a model plane wing. The wing can be idealized as a 0.1 m long flat plate. The surface of the plate must be maintained at 55°C. To maintain the wing at the desired temperature, an electric heater is used. Calculate the electric power needed for this purpose.