Adiffraction grating has 2000 lines per centimeter. at what angle will the first-order maximum be for 520-nm-wavelength green light? a diffraction grating has 2000 lines per centimeter. at what angle will the first-order maximum be for 520-nm-wavelength green light?

What is the scientific definition of energy that relates to work

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?