Our solar system consists of our solar system consists of the sun and the planets, and nothing else a few hundred billion stars, bound together by gravity the sun and several nearby stars, as well as the planets and other objects that orbit these stars the sun and all the objects that orbit it

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.