A sheet of BCC iron 1 mm thick was exposed to a Carburizing atmosphere on one side and decarburizing on the other at 725 C. After having reached steady state, the iron was cooled quickly to room temperature. The carbon concentrations on the surfaces were determined: 0.012 and 0.0075 wt%. Compute the diffusion coefficient if the flux is 1.4 10^(-8 kg)/m^21-s.

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

How would a small bar magnet be oriented when placed at position x?