A set of charged plates have an area of 5.10*10^_3 m^2 and
separation 1.42*10^-5 m. How
much charge must be placed on
the plates to create a potential
difference of 125 V across them?
(The answer is *10^-7 C Just fill in
the number, not the power.)

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray