(II) Three positive particles of equal charge, +17.0 µC, are located at the corners of an equilateral triangle of side 15.0 cm (Fig. 16–53). Calculate the magnitude and direction of the net force on each particle +17.0 µC due to the other two. FIGURE 16–53 Problem 12. +17.0 μC 15.0 cm +17.0 µC 15.0 cm 15.0 cm

(II) Three positive particles of equal charge, +17.0 µC, are located at the corners of an equilateral triangle of side 15.0 cm (Fig. 16–53). Calculate the magnitude and direction of the net force on each particle +17.0 µC due to the other two. FIGURE 16–53 Problem 12. +17.0 μC 15.0 cm +17.0 µC 15.0 cm 15.0 cm

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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(II) At each corner of a square of side l there are point charges of magnitude Q, 2Q, 3Q, and 4Q (Fig. 16–54). Determine the mag- 20 nitude and direction of the force on the charge 2Q. FIGURE 16–54 Problem 15. 4Q
(II) Particles of charge +65, +48, and –95 µC are placed in a line (Fig. 16–52). The center one is 0.35 m from each of the others. Calculate the net force on each charge due to the other two. +65 µC +48 µC -95 µC 0.35 m 0.35 m FIGURE 16–52 Problem 11.
(II) Three charged particles are placed at the corners of an equilateral triangle of side 1.20 m (Fig. 16-53). The charges are +4.0 µC, -8.0 µC, and -6.0 µC. Calculate the magnitude and direction of the net force on each due to the other two. Q1 = +4.0 µC 1.20 m FIGURE 16-53 Q2=-8.0 µC Q3= -6.0 µC Problem 17. 1.20 1.20 m
(II) Determine the electric field É at the origin 0 in Fig. 16–58 due to the two charges at A and B. y |+26 µC A 8.0 cm -26 µC B 8.0 cm FIGURE 16-58 8.0 cm Problem 33.
(II) Two charges of the same magnitude and opposite signs (q1 = 4 nC = −q2) are separated by a distance 2d, where d = 1 cm. Determine the force resultant electric force acting on a charge q3 = 9 nC when it is at point A, B,C, and D. Answer only if you find at all the points
(II) Two point charges, Q1 = -32 µC and Q2 = +45 µC, are separated by a distance of 12 cm. The electric field at the point P (see Fig. 16–57) is zero. How far from Qj is P? Q1 Q2 12 cm P -32 μC +45 µC FIGURE 16-57 Problem 32.
Determine the direction and magnitude of the electric field at point P, Fig. 16–69. The two charges are separated by a dis- tance of 2a. Point Pis on the perpendicular bisector of the line joining the charges, a distance x from the midpoint between them. Express your answers in terms of Q, x, a, and k. +Q FIGURE 16–69 a -Q Problem 66.
Two small charged spheres hang from cords of equal length l as shown in Fig. 16–64 and make small angles 01 and 02 with the vertical. (a) If Q1 = Q, Q2 = 2Q, and m1 = m2 = m, determine the ratio 01/02. (b) Estimate the distance between the spheres. FIGURE 16–64 Problem 52. Q1 Q2
(II) A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 21-g spheres at the ends. When charged, nearly all the charge resides on the spheres. If the wires each make a 26° angle with the vertical (Fig. 16–55), what total charge Q must have been applied to the electroscope? Ignore the mass of the wires. 26°126 78 cm 78 cm FIGURE 16–55 Problem 16.
13. (II) Three positive particles of equal charge, +17.0 μC, are located at the cor- ners of an equilateral triangle of side 15.0 cm (Fig.21-55 ). Calculate the magnitude and direction of the net force on each particle due to the other two. Figure 21-55 +170 μC 15.0 cm 15.0 cm +170 μC 15.0 cm +170 μC Problem 130.
(III) The two strands of the helix-shaped DNA molecule are held together by electrostatic forces as shown in Fig. 16–39. Assume that the net average charge (due to electron sharing) indicated on H and N atoms has magnitude 0.2e and on the indicated C and O atoms is 0.4e. Assume also that atoms on each molecule are separated by 1.0 × 10-10 m. Estimate the net force between (a) a thymine and an adenine; and (b) a cytosine and a guanine. For each bond (red dots) consider only the three atoms in a line (two atoms on one mol- ecule, one atom on the other). (c) Estimate the total force for a DNA molecule containing 10° pairs of such molecules. Assume half are A-T pairs and half are C-G pairs.
Two point charges, Q1 = -6.7 µC and Q2 = 1.8 µC, are located between two oppositely charged parallel plates, as shown in Fig. 16–65. The two charges are separated by a distance of x = 0.47 m. Assume that the electric field produced by the charged plates is uniform and equal to E = 53,000 N/C. Calculate the net electrostatic force on Qi and give its direction. Q1 Q2 FIGURE 16-65 Problem 55. +x→|