Question

Coulomb's Law Tutorial Learning Goal: To understand how to calculate forces between charged particles, particularly the dependence on the sign of the charges and the distance between them. Coulomb's law describes the force that two charged particles exert on each other (by Newton's third law, those two forces must be equal and opposite). The force P21 exerted by particle 2 (with charge q2) on particle 1 (with charge qu)is proportional to the charge of each particle and inversely proportional to the square of the distance r between them: T2 where k and P21 is the unit vector pointing from particle 2 to particle 1. The force vector will be parallel or antiparallel to the direction of r 21 parallel if the product q2 0 and antiparallel if q g2 <0; the force is attractive if the charges are of opposite sign and repulsive if the charges are of the same sign. gure 1 of 3 particle 1 particle 0 Part A (Figure 1) Consider two positively charged particles, one of charge qo (particle 0) fixed at the origin, and another of charge qi (particle 1) fixed on the y axis at (0, di, 0). What is the net force Fon particle 0 due to particle 1? Express your answer (a vector using any or all of k, go, gh, di, i, j, and k. Submit My Answers Give Up Part B (Figure Now add a third, negatively charged, particle, whose charge is -q2 (particle2). Particle 2 fixed on the yaxis atposition (0, d2, 0). What is the new net force on particle 0, from particle 1 and particle 2? Express your answer (a vector) using any or all of k, qo, qh, tz, di, d2, i, j, and k. Submit My Answers Give Up Part C Particle 0 experiences a repulsion from particle 1 and an attraction toward particle 2. For certain values of di and d2, the repulsion and attraction should balance each other, resulting in no net force. For what ratio d/d2 is there no net force on particle 0? Express your answer in terms of any or all of the following variables: k, go, q1. Co Goa di/d2 Submit My Answers Give Up

Answer 1