3. At a specific point in time, three particles have charge values and locations listed below: Charge #1 is located at r₁ = (-1.80 )cm and has a charge of -2.00 x 10-° C. Charge #2 is located at ₂ = (-1.80 )cm and has a charge of -9.20 x 10° C. Charge #3 is located at = (3.40 - 9.60)cm and has a charge of +5.40 x 106 C. Note: the following calculations are for the moment in time corresponding to the information listed above. The locations before and after this moment in time are irrelevant for this problem. 3a. What is the vector for the total electrostatic force exerted on charge 1 from the other two charges? 3b. What is the magnitude of the vector for the total electrostatic force on charge 1? 3c. What is the angular direction (in standard convention, CCW from positive x axis) of the vector for the total electrostatic force on charge 1?

One particle has a mass of 3.71 x 103 kg and a charge of +7.56 μC. A second particle has a mass of 7.17 x 103 kg and the same charge. The two particles are initially held in place and then released. The particles fly apart, and when the separation between them is 0.177 m, the speed of the 3.71 x 103 kg-particle is 126 m/s. Find the initial separation between the particles. V1,B V2,B 92 92 91 Number i 0.011 Units m "B 91

Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +6q. Sphere B carries a charge of -5g. Sphere C carries no net charge. Spheres A and B are touched together and then separated. Sphere C is then touched to sphere A and separated from it. Last, sphere C is touched to sphere B and separated from it. For the following questions, express your answers in terms of q. (a) How much charge ends up on sphere C? 0.5 (b) What is the total charge on the three spheres before they are allowed to touch each other? 0.25 (c) What is the total charge on the three spheres after they have touched? 0.375 Additional Materials M eBook JAN 12 tv MacBook Air DII 80 F7 F8 F6 esc F4 F5 F1 F2 F3 * 24 %

please help with b)