How far apart are the lines formed by the singly charged ions of each type on the photographic film? Express your answer using two significant figures. Enter your answers numerically separated by a comma.

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.

What physical characteristic does the moment of inertia of a rotating object most directly and accurately measure? radius mass momentum rotational inertia

Read the sentences from the sections "the atoms" and "the electrons." there is a separate box of elements below the main table (and an odd shape for the main table, with a bite taken out of the top) because of how the other parts of the atom – the electrons – are arranged. in other words, the first element in each row starts a new shell containing one electron, and the last element in each row has two of the subshells in the outer shell fully occupied. the two sentences develop the reader's understanding of the article by