An electric heating element is made of a straight 1.00-mm diameter wire. Convective heat transfer coefficient from the wire to the surrounding air is 25 W/m2-K. Emissivity of the wire is 0.90. The air and the solid surfaces surrounding the wire are at 0 °C, and the solid surfaces have emissivity of 1.00. The wire material melts at 1000 °C. What is the electric resistance energy input to the wire (watts per meter) at which the wire will melt? Repeat if the solid surfaces have emissivity of 0.8.