How many photons are in a laser pulse of 0.363j at 657 nm?

:( asap! list all of the items in the item bank and match the definitions correctly.

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

The air that we breath is made mostly of which gaseous molecule