Two parallel plates having charges of equal magnitude but opposite sign are separated by 15.0 cm. Each plate has a surface charge density of 31.0 nC/m^2. A proton is released from rest at the positive plate. Required:a. Determine the magnitude of the electric field between the plates from the charge density. b. Determine the kinetic energy of the proton when it reaches the negative plate. c. Determine the speed of the proton just before it strikes the negative plate. d. Determine the acceleration of the proton. e. Determine the force on the proton. f. From the force, find the magnitude of the electric field. kN/C Show that it is equal to that electric field found from the charge densities on the plates.

We all use gps today, even if we don't drive yet. i bet you have been in the car with a parent and they have asked you to get out your phone to find a specific location. in your car, on the phone, you are using a very sophisticated technology. gps satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. gps receivers take this information and use trilateration to calculate the user's exact location. essentially, the gps receiver compares the time a signal was transmitted by a satellite with the time it was received. the time difference tells the gps receiver how far away the satellite is. now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map. what type of signal is utilized by the gps satellite?

How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .

An ideal spring has a spring constant (force constant) of 2500 n/m, is stretched 4.0 cm, how much elastic potential energy does it possess? (a) 3j (b) 0.00j (c) 1j (d) 2j (e) 4j