Samantha is observing a salt crystal under a microscope. she wants to view more details by enlarging the image of the crystal. which would allow her to do this?
a)increasing the amount of light that shines on the crystal
b)decreasing the amount of light that shines on the crystal
c)increasing the strength of the objective lens
d)decreasing the strength of the objective lens

The two required components for a generator

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.

If anyone who can me with this hw? i would really appreciate it