Physics III Problem

A proton enters a region where the electric field has a mangnitude of 500 N/C and is produced by two charged plates. The length of the plates is .200M. The initial velocity is 3X10^6 m/s in the postive x direction. A) Draw the path of the proton. B) Find the change in the y direction of the proton.

light reflected from air wedge formed by glass plates.

I am having a bit of trouble with a problem in a algebra based physics course. Any help would be appreciated. Here goes: When blue light (wavelength 589nm)is reflected from an air wedge formed by two flat glass plates, the bright fringes are 0.6cm apart. 1)How thick is the air wedge 5.0cm from the line of contact of the plates? (the wedge is viewed at normal incidence) 2) repeat for the wedge filled with oil (index of refraction is 1.4) instead of air.

Physics

I am having a bit of trouble with a problem in a algebra based physics course. Any help would be appreciated. Here goes: When blue light (wavelength 589nm)is reflected from an air wedge formed by two flat glass plates, the bright fringes are 0.6cm apart. 1)How thick is the air wedge 5.0cm from the line of contact of the plates? (the wedge is viewed at normal incidence) 2) repeat for the wedge filled with oil (index of refraction is 1.4) instead of air.

Parallel plates

Imagine that you would like to design a parallel plate capacitor that could store 1 J of electrical energy in the electric field between its plates when connected to a 1.5 V battery. Imagine that you can arrange things so that the plates can be separated by a distance d as smal as 0.5 mm. (Hint argue that the electric field strength between the plates is E approximately equal to V/d, where V is th potental difference between the plates).

Nested Shell Capacitor

a) Argue that the energy stored in the electric field of such a capacitor is Ufield=1/2CVo2, if Vo is the potential difference. (Hint: Argue that between the plates, the field strength is EVo/d, where dRo -RI is the distance between the conductors. Use the equation for the capacitance of a nested sell capacitor and the fact that Ro  Ri, to eliminate d in the equation for E in favor of C. Roughly how much volume does this field occupy?) b) Imagine we discharge this capacitor by connecting its plates with a wire of resistance R. The rate at which thermal energy is produced in the wire at any given instant of time is.. refer to attachment