1. The problem statement, all variables and given/known data What is the net heat flow of an aluminum disk (emissivity = 0.05) with radius 10 cm and temperature 293K placed inside a room where the temperature is 300K? Asurface = π*r2 = 0.01π m2 2. Relevant equations Hnet = A*e*σ(Tradiate4-Tabsorb4) 3. The attempt at a solution By simply plugging in the values, I get a value of 0.13. However, the answer is not among the choices. Where did I possibly go wrong?