The picture is Nathan's model of a cell, the basic building block for living things. What can Nathan NOT demonstrate using this model? A the parts of the cell B the shape of the cell C how cells interact with each other D how organelles act within the cell

Explain what makes a passenger in a turning car slide toward the door. critical thinking

What is special about a dc circuit ?

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.