Atmospheric air at 400 K flows over a flat plate (2 m long) with a velocity of 1.2 m/s. The plate is kept at a constant temperature of 300 K. Calculate the average heat transfer coefficient from (x = 0) o (x = 2) m.

) (ℎₐ = 50, {W/(m}²∙ {K)})
) (ℎₐ = 100, {W/(m}²∙ {K)})
) (ℎₐ = 150, {W/(m}²∙ {K)})
) (ℎₐ = 200, {W/(m}²∙ {K)})