Which of the following is something you could do to reduce your impact on the environment? Throw newspapers in the trash can.

Drive a car instead of walking short distances.

Open a window on a cold day while the heat is on.

Take shorter showers.

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.