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.

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

The plum pudding model of the atom states that ?

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.