In the figure particles 1 and 2 of charge 41-42=+11.20 x 10 19 C are on a y axis at distance d=18.6 cm from the origin. Particle 3 of charge q3= +17.60 x 10 19 C is moved gradually along the x axis from x = 0 tox=+8.37 m. At what values of x will the magnitude of the electrostatic force on the third particle from the other two particles be (a) minimum and (b) maximum? What are the (c) minimum and (d) maximum magnitudes of the force?

Q 1. In Fig. a, particles 1 and 2 have charge 20.0 mC each and are held at separation distance d=1.50 m. (a) What is the magnitude of the electrostatic force on particle 1 due to particle 2? In Fig. b, particle 3 of charge 20.0 mC is positioned so as to complete an equilateral triangle. (b) What is the magnitude of the net electrostatic force on particle 1 due to particles 2 and 3? d 3. (a) (b)

In Figure (a) three positively charged particles are fixed on an x axis. Particles B and Care so close to each other that they can be considered to be at the same distance from particle A. The net force on particle A due to particles B and C is 2.75 × 10-23 N in the negative direction of the x axis. In Figure (b), particle B has been moved to the opposite side of A but is still at the same distance from it. The net force on A is now 3.35 x 10-24 N in the negative direction of the x axis. What is the ratio qc/qB? Number i Units B A A (b) BC x

In the figure what are the (a) magnitude and (b) direction (from x-axis in the counterclockwise direction) of the net electrostatic force on particle 4 due to the other three particles? All four particles are fixed in the xy plane, and q₁ = -12.80 x 10-19 C, q2 = +12.80 × 10-1⁹ C, 93=+25.60 x 10-19 C, q4=+12.80 x 10-19 C, 0₁ = 41°, d₁ = 5.40 cm, and d2 = d3 = 3.40 cm. da 12 de ex 3

In the figure four particles are fixed along an x axis, separated by distances d = 2.40 cm. The charges are q₁ = +2e, q2 = -e, q3 = +e, and 94 = +4e, with e = 1.60 × 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 d d X 1 2 3 4

A point charge Q is placed on the x axis at the origin. An identical point charge is placed on the x axis at x = -1.0 m and another at x = +1.0 m. If Q = 20 μC, what is the magnitude of the electrostatic force on the charge at x = +1.0 m?

In the figure particle 1 of charge -4.50q and particle 2 of charge +2.10q are held at separation L = 4.30 m on an x axis. If particle 3 of unknown charge 93 is to be located such that the net electrostatic force on it from particles 1 and 2 is zero, what must be the (a) x and (b) y coordinates of particle 3? i Units (a) Number i Units (b) Number

I’m a little bit confused

Figure (a) shows charged particles 1 and 2 that are fixed in place on an x axis. Particle 1 has a charge with a magnitude of |q1| = 17e. Particle 3 of charge q3 = +17e is initially on the x axis near particle 2. Then particle 3 is gradually moved in the positive direction of the x axis. As a result, the magnitude of the net electrostatic force on particle 2 due to particles 1 and 3 changes. Figure (b) gives the x component of that net force as a function of the position x of particle 3. The scale of the x axis is set by x, = 1.40 m. The plot has an asymptote of F2,net = 3.363 x 1025 N as x→∞. As a multiple of e and including the sign, what is the charge 92 of particle 2? Number i (a) Units 3 $6 (b) F₂, net (N) (m)

In the figure particles 1 and 2 are fixed in place on an x axis, at a separation of L=8.10 cm. Their charges are q₁=+e and q2 = -27e. Particle 3 with charge 93 +6e is to be placed on the line between particles 1 and 2, so that they produce a net electrostatic force on it. (a) At what coordinate should particle 3 be placed to minimize the magnitude of that force? (b) What is that minimum 3.net magnitude? F (a) Number 2.02 (b) Number 16.90E-25 Units cm Units N