1) A system of (1.480x10^3) particles, each of which is either an electron or a proton, has a net charge of -(4.72x10^-17) C. How many electrons are in this system?

Note: Your answer is assumed to be reduced to the highest power possible.

2) A 5.73 C charge experiences a 0.592 N force in the positive y direction. If this charge is replaced with a -2.92 C charge, what force (in newtons) will it experience?

Use a positive answer to indicate an upward force and a negative answer to indicate a downward force.

3) A proton is released from rest in a uniform electric field of magnitude (2.13x10^5) N/C. Find the speed (in m/s) of the proton after it has traveled (8.420x10^-2) m.

Note: Your answer is assumed to be reduced to the highest power possible.

4) A charge ofq = +7.02 C is located in an electric field. The xandycomponents of the electric field areE_x = 6400 N/C and E_y = 7080 N/C, respectively. What is the magnitude of the force (in newtons) on the charge?