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In Fig. 21-41, three identical
Figure 21-41 Problem 48.
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- 48 In Fig. 21-41, three identical con- ducting spheres form an equilateral tri- angle of side length d= 20.0 cm. The sphere radii are much smaller than d, and the sphere charges are q4 = -2.00 nC, q = -4.00 nC, and qc = +8.00 nC. (a) What is the magnitude of the electro- static force between spheres A and C? The following steps are then taken: A and B are connected by a thin wire and then disconnected; B is grounded by the wire, and the wire is then removed; B and C are connected by the wire and then discon- nected. What now are the magnitudes of the electrostatic force (b) between spheres A and Cand (c) between spheres B and C? C. Figure 21-41 Problem 48.arrow_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_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
- In Fig. 21-22, the particles have charges 91 = -92 = 137 nC and 93 = -94 = 148 nC, and distance a = 5.2 cm. (a) Find the net electrostatic force on particle 3: F net,3 = N (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 3 a Fig. 21-22arrow_forwardFigure 21-18 shows four situations in which particles of charge +q or -q are fixed in place. In each situation, the particles on the x axis are equidistant from the y axis. First, consider the middle particle in situation 1; the middle particle experiences an electrostatic force from each of the other two particles. (a) Are the magnitudes F of those forces the same or different? (b) Is the magnitude of the net force on the middle particle equal to, greater than, or less than 2F? (c) Do the x components of the two forces add or cancel? (d) Do their y components add or cancel? (e) Is the direction of the net force on the middle particle that of the canceling components or the adding components? (f) What is the direction of that net force? Now consider the remaining situations: What is the direction of the net force on the middle particle in (g) situation 2, (h) situation 3, and (i) situation 4? (In each situation, consider the symmetry of the charge distribution and determine the…arrow_forwardPlz asaparrow_forward
- Four identical simple pendula consisting of light string of length I and small bob of mass m are suspended from common point of suspension. The bobs of pendula are given equal charge due to which each string makes 60° with downward vertical. Charge on each bob is 3mgl (a) V(2/2 +1)K 313mgl V(2/2+1)K 3mgl mgl? (/2+1)K (d)arrow_forwardThree identical conducting spheres denoted as X, Y, and Z are separated in space. They have initial net charges of −2Q, −3Q, and 5Q, respectively. Sphere Z is touched to X and separated, then touched to Y and separated. Upon reaching electrostatic equilibrium, what is the final net charge of Y?arrow_forwardTwo metal spheres of radius 5.00 cm carry net charges of +2.00 μC and +0.300 μC.What (approximately) is the magnitude of the electrical repulsion on either sphere when their centers are 1.00 m apart?arrow_forward
- ..23 O In Fig. 21-32, particles 1 and 2 of charge q = q2 = +3.20 x 10-19C are on a y axis at distance d = 17.0 cm from the origin. Particle 3 of charge 93 = +6.40 x 10-19 Cis moved gradu- ally along the x axis from x = 0 to x = +5.0 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? Figure 21-32 Problem 23. |----arrow_forwardAn attractive force exists between two particles A and B with charges 2.062x10-4 C and -3.4518x10-4 C respectively. If particle B is positioned at coordinates (4cm,-2cm) from particle A (0,0), compute for the electrostatic force (both magnitude and direction) on the particle A due to particle B.arrow_forwardProtons in an atomic nucleus are typically 10^-15m apart, what is the magnitude of the electric force of repulsion between a pair of nuclear protons?arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning