Problem 1 A cube with an area (A = 0.1 m) on each side is heated from the bottom with a uniform heat flux (q"). The cube is at temperature 7 and is assumed to be isothermal. The cube loses heat to the environment by convection, which is assumed to be uniform over the exposed faces of the cube. The process is at steady state. What is the temperature of the cube? Approximate solution: 20C T = ? W m q" = 1800- Too = 20C W m * K h 120-