Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 21, Problem 48P
In Fig. 21-41, three identical
Figure 21-41 Problem 48.
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62 SSM In Fig. 21-44, 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 q,
-3.20 x 10-19 C, q2 = +3.20 x 10-19 C, q3 = +6.40 x 10-19 C, q4 =
+3.20 x 10-19 C, 6, = 35.0°, d, = 3.00 cm, and d, = d; = 2.00 cm.
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Two protons in an atomic nucleus are typically separated
by a distance of 2 & 10"15 m. The electric repulsion force
between the protons is huge, but the attractive nuclear
force is even stronger and keeps the nucleus from bursting
apart. What is the magnitude of the electric force between
two protons separated by 2.00 & 10"15 m?
18 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.
Chapter 21 Solutions
Fundamentals of Physics Extended
Ch. 21 - Figure 21-11 shows 1 four situations in which five...Ch. 21 - Figure 21-12 shows three pairs of identical...Ch. 21 - Figure 21-13 shows four situations in which...Ch. 21 - Figure 21-14 shows two charged particles on an...Ch. 21 - In Fig. 21-15, a central particle of charge q is...Ch. 21 - A positively charged ball is brought close to an...Ch. 21 - Figure 21-16 shows three situations involving a...Ch. 21 - Figure 21-17 shows four arrangements of charged...Ch. 21 - Figure 21-18 shows four situations in which...Ch. 21 - In Fig. 21-19, a central particle of charge 2q is...
Ch. 21 - Figure 21-20 shows three identical conducting...Ch. 21 - Figure 21-21 shows four situations in which a...Ch. 21 - SSM ILW Of the charge Q initially on a tiny...Ch. 21 - Identical isolated conducting spheres 1 and 2 have...Ch. 21 - SSM What must be the distance between point charge...Ch. 21 - In the return stroke of a typical lightning bolt,...Ch. 21 - A particle of charge 3.00 106 C is 12.0 cm...Ch. 21 - ILW Two equally chained particles are held 3.2 ...Ch. 21 - In Fig. 21-23, three charged particles lie on an x...Ch. 21 - In Fig. 21-24, three identical conducting spheres...Ch. 21 - SSM WWW Two identical conducting spheres, fixed in...Ch. 21 - GO In Fig. 21-25, four particles form a square....Ch. 21 - ILW In Fig. 21-25, the particles have charges q1 =...Ch. 21 - Two particles are fixed on an x axis. Particle 1...Ch. 21 - GO In Fig. 21-26, particle 1 of charge l.0 C and...Ch. 21 - Three particles are fixed on an x axis. Particle 1...Ch. 21 - GO The charges and coordinates of two charged...Ch. 21 - GO In Fig. 21-27a, particle l of charge q1 and...Ch. 21 - In Fig.21-28a, particles 1 and 2 have charge 20.0...Ch. 21 - In Fig. 21-29a, three positively charged particles...Ch. 21 - SSM WWW In Fig. 21-26, particle 1 of charge q and...Ch. 21 - GO Figure 21-30a shows an arrangement of three...Ch. 21 - GO A nonconducting spherical shell, with an inner...Ch. 21 - GO Figure 21-31 shows an arrangement of four...Ch. 21 - GO In Fig. 21-32, particles 1 and 2 of charge q1 =...Ch. 21 - Two tiny, spherical water drops, with identical...Ch. 21 - ILW How many electrons would have to be removed...Ch. 21 - Prob. 26PCh. 21 - SSM The magnitude of the electrostatic force...Ch. 21 - A current of 0.300 A through your chest can send...Ch. 21 - GO In Fig. 21-33, particles 2 and 4, of charge e,...Ch. 21 - In Fig. 21-26, particles 1 and 2 are fixed in...Ch. 21 - ILW Earths atmosphere is constantly bombarded by...Ch. 21 - GO Figure 21-34a shows charged particles 1 and 2...Ch. 21 - Calculate the number of coulombs of positive...Ch. 21 - GO Figure 21-35 shows electrons 1 and 2 on an x...Ch. 21 - SSM In crystals of the salt cesium chloride,...Ch. 21 - Electrons and positrons are produced by the...Ch. 21 - Prob. 37PCh. 21 - GO Figure 21-37 shows four identical conducting...Ch. 21 - SSM In Fig. 21-38, particle 1 of charge 4e is...Ch. 21 - In Fig, 21-23, particles 1 and 2 are fixed in...Ch. 21 - a What equal positive charges would have to be...Ch. 21 - In Fig. 21-39, two tiny conducting balls of...Ch. 21 - a Explain what happens to the balls of Problem 42...Ch. 21 - SSM How far apart must two protons be if the...Ch. 21 - How many megacoulombs of positive charge are in...Ch. 21 - In Fig. 21-40, four particles are fixed along an x...Ch. 21 - GO Point charges of 6.0 C and 4.0 C are placed on...Ch. 21 - In Fig. 21-41, three identical conducting spheres...Ch. 21 - A neutron consists of ore up quark of charge 2e/3...Ch. 21 - Figure 21-42 shows a long, nonconducting, massless...Ch. 21 - A charged nonconducting rod, with a length of 2.00...Ch. 21 - A particle of charge Q is Fixed at the origin of...Ch. 21 - What would be the magnitude of the electrostatic...Ch. 21 - A charge of 6.0 C is to be split into two parts...Ch. 21 - Of the charge Q on a tiny sphere, a fraction is...Ch. 21 - If a cat repeatedly rubs against your cotton...Ch. 21 - We know that the negative charge on the electron...Ch. 21 - In Fig, 21-26, particle 1 of charge 80.0C and...Ch. 21 - What is the total charge in coulombs of 75.0 kg of...Ch. 21 - GO In Fig. 21-43, six charged particles surround...Ch. 21 - Three charged particles form a triangle: particle...Ch. 21 - SSM In Fig. 21-44, what are the a magnitude and b...Ch. 21 - Two point charges of 30 nC and 40 nC are held...Ch. 21 - Two small, positively charged spheres have a...Ch. 21 - The initial charges on the three identical metal...Ch. 21 - An electron is in a vacuum near Earths surface and...Ch. 21 - SSM In Fig. 21-26, particle 1 of charge 5.00q and...Ch. 21 - Two engineering students, John with a mass of 90...Ch. 21 - In the radioactive decay of Eq. 21-13, a 238U...Ch. 21 - In Fig. 21-25, four particles form a square. The...Ch. 21 - In a spherical metal shell of radius R, an...Ch. 21 - An electron is projected with an initial speed vl...Ch. 21 - In an early model of the hydrogen atom the Bohr...Ch. 21 - A100 W lamp has a steady current of 0.83 A in its...Ch. 21 - The charges of an electron and a positron are e...
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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
- 3 In Fig. 21-11, the particles have charges q, = -92 = 300 nC and 93 = -q4 = 200 nC, and distance a = 5.0 cm. What are the (a) magnitude and (b) angle (relative to the +x direction) of the net force on particle 3? %3! a 3arrow_forwardIn 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_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_forward
- Figure 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_forwardThree charged particles A B and C are placed on Y Axis. A and B are fixed. The particle C feels zero force when the ratio of distance dAB\ dBC =4.7.what is the ratio qA\qB (magnitude only)? A d AB В d BCarrow_forwardPlz asaparrow_forward
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