Answers: 2
Physics, 22.06.2019 10:50
Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.
Answers: 3
Physics, 22.06.2019 18:30
Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction
Answers: 1
Describe quantitatively, in words, the relationship between the mass attached to a vertical spring,...
Biology, 01.06.2020 17:59
History, 01.06.2020 17:59
Mathematics, 01.06.2020 17:59
English, 01.06.2020 17:59
Physics, 01.06.2020 17:59
Mathematics, 01.06.2020 17:59
Mathematics, 01.06.2020 17:59
Mathematics, 01.06.2020 17:59
Mathematics, 01.06.2020 17:59