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GO Figure 21-30a shows an arrangement of three charged particles separated by distance d. Particles A and C are fixed on the x axis, but particle B can be moved along a circle centered on particle A. During the movement, a radial line between A and B makes an angle θ relative to the positive direction of the x axis (Fig. 21-30b). The curves in Fig. 21-30c give, for two situations, the magnitude Fnet, of the net electrostatic force on particle A due to the other particles. That net force is given as a function of angle θ and as a multiple of a basic amount
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- In Fig. 21-22, the particles have charges 9₁ = -92 = 281 nC and 93 = -94 = 138 nC, and distance a = 3.9 cm. (a) Find the net electrostatic force on particle 3: Fnet, 3 = N I (b) What is the vector sum of net electric forces acting on particle 1, 2, 3 and 4? Fnet, 1 + Fnet, 2 + Fnet,3 + Fnet,4 = N a Fig. 21-22 a Xarrow_forward18 In Fig. 21-29a, three positively charged particles are fixed on an x BC (a) axis. Particles B and C are so close to each other that they can be con- sidered to be at the same distance B. A from particle A. The net force on particle A due to particles B and C is 2.014 x 10-23 N in the negative direction of the x axis. In Fig. 21- 29b, 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 2.877 x 10-24 N in the negative direction of the x axis. What is the ratio Id9n? (b) Figure 21-29 Problem 18.arrow_forwardFour point charges of equal magnitude but with varying signs are arranged on three of the corners and at the center of the square of side d as shown in Fig. 21-3. Which of the arrows shown represents the net force acting on the center charge? A D В) с A D Barrow_forward
- Figure 22-32 shows two charged particles on an x axis: -q = --3.20 X 10-19 C at x = -3.00 m and q = 3.20 x 10-19 C at x = +3.00 m. What are the (a) magnitude and (b) itection (relative to the positive direction of the x axis) of the net electric field produced at point P at y = 4.00 m? %3D %3D y -9 Fig. 22-32· Problem 9.arrow_forwardFigure 22-40 shows an electric dipole. What are the (a) magni- tude and (b) direction (rèlative to the positive direction of the x axis) of the dipole's electric field at point P, located at distance r> d? +q d/2 d/2 Fig. 22-40 Problem 19.arrow_forwardProblem 21-60 (HW-21, Hint) In Fig., what are the (a) magnitude and (b) 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 qı = -3.20 x 101 C, q2 = +3.20 x 101 C, q3 = + 6.40 x 10*1º C, q4 = +3.20 x 101 C, q1 = 35.0°, di = 3.00 cm, and d2 = d3 = 2.00 cm. 9.3 SSMarrow_forward
- *7 In Fig. 21-23, three charged particles lie on an x axis. Particles 1 and 2 are fixed in place. Particle 3 is free to move, but the net elec- Figure 21-23 Problems 7 and 40. trostatic force on it from particles 1 and 2 happens to be zero. If L23 = L12, what is the ratio ql92? -L12 L-arrow_forwardSSM ILW Www In Fig. 22-30, the four particles form a square of edge length a = 5.00 cm and have - 20.0 -charges q₁ = +10.0 nC, 92 => 94 - 10.0 nC. nC, q3= +20.0 nC, and q 93 In unil-vector notation, what net elec- tric field do the particles produce al the square's center? a 1 L 94 Fig. 22-30 Problem 7. Carrow_forwardIn Fig. 21-20, a central particle of charge 2q is surrounded by a square array of charged particles, separated by either distance d or d/2 along the perimeter of the square. What are the magnitude and direc- tion of the net electrostatic force on the central particle due to the other particles? (Hint: Consideration of symmetry can greatly reduce the amount of work required here.)arrow_forward
- 15 In Fig. 22-42, the three particles are fixed in place and have charges 91 = 42 = +e and q3 = +2e. Distance a = 6.00 µm. What are the (a) magnitude and (b) direc- tion of the net electric field at point P due to the particles? %3! %3Darrow_forward46 In Fig. 21-40, four particles are fixed along an x axis, separated by distances d = 2.00 cm. The charges are q1 = +2e, q2 - -e, q3 = +e, and q4 = +4e, with e = 1.60 x 10-19 Č. In unit-vector notation, what is the net electrostatic force on (a) particle 1 and (b) particle 2 due to the other particles? %3! Figure 21-40 Problem 46. %3Darrow_forwardYour answer is partially correct. The charges and coordinates of two charged particles held fixed in an xy plane are q1 = 2.13 µC, x1 = 4.35 cm, Y1 = 0.304 cm and 92 = -5.93 µC, x2 = -2.30 cm, y2 = 1.07 cm. Find the (a) magnitude and (b) direction (with respect to +x-axis in the range (-180°;180°]) of the electrostatic force on particle 2 due to particle 1. At what (c) x and (d) y coordinates should a third particle of charge q3 = 6.16 µC be placed such that the net electrostatic force on particle 2 due to particles 1 and 3 is zero? (a) Number 25.3 Units N (b) Number i 173.44 Units ° (degrees) (c) Number -3.6 Units m Number i 0.42 Units marrow_forward
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