Suppose a diffraction grating has three slits. (a) If the bottom slit contributes to the zeroth-order maximum, what is the difference between the distances traveled by light from the middle and bottom slits?
(b) What is the difference between the distance traveled by the light from these two slits at the dark mode surrounding the zeroth-order maximum?​

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.