An electric light bulb, rated at 60 W, has a surface temperature of 145 C when cooled by atmospheric air at 25 C. The air flows past the bulb with a velocity of 0.5 m/s. The bulb can be modeled as a...

An electric light bulb, rated at 60 W, has a surface temperature of 145C when cooled by atmospheric air at 25C. The air flows past the bulb with a velocity of 0.5 m/s. The bulb can be modeled as a sphere with a diameter of 7.5 cm. Determine the heat transfer from the bulb by the mechanism of forced convection.