Recent content by dvd84

I have an iron bar not insulated, of length 6 meters, heigth 28 cm and width 4 cm, hence the area is 1.68 m^2 and the mass is 529.13 Kg. The heat capacity of iron is 450 J/Kg*K. The thermal conductivity of iron is 0.023 W/m*K. The thermal expansion coefficient is 0.0037 C^-1. The density of air...

no it is not an homework problem, I have a solution which is T_final = F + Q/(u*A*L) where F is the formula that updates the temperature and it works quite well. The term Q/(u*A*L) represents the increment of temperature due to the electric cable, where Q is the power, u the coefficient...

Hello, my problem is the following: I have an iron bar, which can be heated by convection through an electric cable with power Q. I want to know the temperature of the iron bar after 1 hour has passed, both in the case when the power is turned on and when it is off (Q=0). the input parameters...