Answer the following question. Make sure to follow the format and box the final answer to avoid confusion of final answer.

1.

In the figure four particles are fixed along an x axis, separated by distances d = 3.60 cm. The charges are q1 = +4e, q2 = -e, q3 = te, and q4 =+12e, with e = 1.60 x 10-19 C. What is the value of the net electrostatic force on (a) particle 1 and (b) particle 2 due to the other particles? d A (a) Number i Units (b) Number i Units vIn the figure particle 1 (of charge +4.70 mC), particle 2 (of charge +4.70 mC), and particle 3 (of charge Q) form an equilateral triangle of edge length a. For what value of Q (both sign and magnitude) does the net electric field produced by the particles at the center of the triangle vanish? Number ! Units C.mTwo particles are fixed to an x axis: particle 1 of charge q1 = 2.01 x 10- C at x = 23.0 cm and particle 2 of charge q2 = -5.29q1 at x = 75.0 cm. At what coordinate on the x axis is the electric field produced by the particles equal to zero? Number i ! Units cmWhen resistors 1 and 2 are connected in series, the equivalent resistance is 22.1 Q. When they are connected in parallel, the equivalent resistance is 4.46 9. What are (all the smaller resistance and {III the larger resistance of these two resistors