A circular disk heater 0.2 𝑚 in diameter is exposed to ambient air at 25℃. The top side and edges are insulated and the bottom side is maintained at 130℃ (see figure below). Additionally there is a slight breeze that is maintained across the surface at

2.5m/s

Given the following properties of air in the table below calculate

Since the disk could have forced and/or natural convection heat loss components, determine whether this problem should be considered a Natural, Forced, or Combined convection problem. Show your work and assume you calculated a Reynolds Number equal to (it is free convection)

Determine the average Nusselt Number for the problem (Nu = 7.42) I could also ask for things like the convective coefficient or heat transfer rate, etc.