Modified Mastering Physics with Pearson eText -- Combo Access -- for Physics for Scientist and Engineers (18 week)
5th Edition
ISBN: 9780137504299
Author: Douglas C. Giancoli
Publisher: Pearson Education (US)
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Chapter 21 Solutions
Modified Mastering Physics with Pearson eText -- Combo Access -- for Physics for Scientist and Engineers (18 week)
Ch. 21.5 - Return to the Chapter-Opening Question, page 559,...Ch. 21.5 - Prob. 1BECh. 21.5 - Determine the magnitude and direction of the net...Ch. 21.5 - (a) Consider two point charges of the same...Ch. 21.6 - Four charges of equal magnitude, but possibly...Ch. 21 - If you charge a pocket comb by rubbing it with a...Ch. 21 - Why does a shirt or blouse taken from a clothes...Ch. 21 - Explain why fog or rain droplets tend to form...Ch. 21 - A positively charged rod is brought close to a...Ch. 21 - Why does a plastic ruler that has been rubbed with...
Ch. 21 - Contrast the net charge on a conductor to the free...Ch. 21 - Figures 217 and 218 show how a charged rod placed...Ch. 21 - When an electroscope is charged, the two leaves...Ch. 21 - Prob. 9QCh. 21 - Prob. 10QCh. 21 - The form of Coulombs law is very similar to that...Ch. 21 - We are not normally aware of the gravitational or...Ch. 21 - What experimental observations mentioned in the...Ch. 21 - When a charged ruler attracts small pieces of...Ch. 21 - Explain why the test charges we use when measuring...Ch. 21 - When determining an electric field, must we use a...Ch. 21 - Draw the electric field lines surrounding two...Ch. 21 - Assume that the two opposite charges in Fig. 2134a...Ch. 21 - Consider the electric field at the three points...Ch. 21 - Why can electric field lines never cross?Ch. 21 - Prob. 21QCh. 21 - Given two point charges, Q and 2Q, a distance ...Ch. 21 - Suppose the ring of Fig. 2128 has a uniformly...Ch. 21 - Consider a small positive test charge located on...Ch. 21 - We wish to determine the electric field at a point...Ch. 21 - In what ways does the electron motion in Example...Ch. 21 - Explain why there can be a net force on an...Ch. 21 - Describe the motion of the dipole shown in Fig....Ch. 21 - Prob. 1MCQCh. 21 - Prob. 2MCQCh. 21 - Prob. 3MCQCh. 21 - Prob. 4MCQCh. 21 - Prob. 5MCQCh. 21 - Prob. 6MCQCh. 21 - Prob. 7MCQCh. 21 - Prob. 8MCQCh. 21 - Prob. 9MCQCh. 21 - Prob. 10MCQCh. 21 - Prob. 11MCQCh. 21 - Prob. 12MCQCh. 21 - (I) What is the magnitude of the electric force of...Ch. 21 - Prob. 2PCh. 21 - Prob. 3PCh. 21 - Prob. 4PCh. 21 - Prob. 5PCh. 21 - Prob. 6PCh. 21 - Prob. 7PCh. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - (II) Compare the electric force holding the...Ch. 21 - (II) Two positive point charges are a fixed...Ch. 21 - Prob. 12PCh. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - Prob. 15PCh. 21 - (II) Two negative and two positive point charges...Ch. 21 - Prob. 17PCh. 21 - Prob. 18PCh. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - (III) Two positive charges +Q are affixed rigidly...Ch. 21 - Prob. 22PCh. 21 - Prob. 23PCh. 21 - Prob. 24PCh. 21 - Prob. 25PCh. 21 - Prob. 26PCh. 21 - Prob. 27PCh. 21 - Prob. 28PCh. 21 - Prob. 29PCh. 21 - (II) A long uniformly charged thread (linear...Ch. 21 - Prob. 31PCh. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - (II) Determine the direction and magnitude of the...Ch. 21 - Prob. 35PCh. 21 - (II) A very thin line of charge lies along the x...Ch. 21 - (II) (a) Determine the electric field E at the...Ch. 21 - (II) Draw, approximately, the electric field lines...Ch. 21 - (II) Two parallel circular rings of radius R have...Ch. 21 - (II) You are given two unknown point charges, Q1...Ch. 21 - Prob. 41PCh. 21 - (II) (a) Two equal charges Q are positioned at...Ch. 21 - (II) At what position, x = xM, is the magnitude of...Ch. 21 - (II) The uniformly charged straight wire in...Ch. 21 - (II) Determine the direction and magnitude of the...Ch. 21 - (II) Use your result from Problem 46 to find the...Ch. 21 - (II) A thin rod bent into the shape of an arc of a...Ch. 21 - (III) Suppose a uniformly charged wire starts at...Ch. 21 - Prob. 50PCh. 21 - (III) A thin rod of length carries a total charge...Ch. 21 - (III) Uniform plane of charge. Charge is...Ch. 21 - Prob. 53PCh. 21 - Prob. 54PCh. 21 - Prob. 55PCh. 21 - Prob. 56PCh. 21 - Prob. 57PCh. 21 - (II) A positive charge q is placed at the center...Ch. 21 - (II) A dipole consists of charges +e and e...Ch. 21 - (II) The HCl molecule has a dipole moment of about...Ch. 21 - (II) An electric dipole, of dipole moment p and...Ch. 21 - (II) Suppose both charges in Fig. 2145 (for a...Ch. 21 - (III) Suppose a dipole p is placed in a nonuniform...Ch. 21 - Prob. 64PCh. 21 - Prob. 65PCh. 21 - How close must two electrons be if the electric...Ch. 21 - Prob. 67GPCh. 21 - A water droplet of radius 0.018 mm remains...Ch. 21 - Estimate the net force between the CO group and...Ch. 21 - Suppose that electrical attraction, rather than...Ch. 21 - In a simple model of the hydrogen atom, the...Ch. 21 - A positive point charge Q1 = 2.5 105 C is fixed...Ch. 21 - When clothes are removed from a dryer, a 40-g sock...Ch. 21 - Dry air will break down and generate a spark if...Ch. 21 - Prob. 76GPCh. 21 - Packing material made of pieces of foamed...Ch. 21 - One type of electric quadrupole consists of two...Ch. 21 - Suppose electrons enter a uniform electric field...Ch. 21 - Prob. 80GPCh. 21 - Three very large square planes of charge are...Ch. 21 - Prob. 82GPCh. 21 - Prob. 83GPCh. 21 - Prob. 84GPCh. 21 - Prob. 85GPCh. 21 - A one-dimensional row of positive ions, each with...Ch. 21 - Prob. 87GPCh. 21 - Prob. 88GPCh. 21 - Prob. 89GPCh. 21 - Prob. 90GPCh. 21 - Prob. 91GPCh. 21 - Prob. 92GP
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- 60 O In Fig. 21-43, six charged particles surround particle 7 at ra dial distances of either d = 1.0 cm or 2d, as drawn. The charges are q1 = +2e,92 = +4e, q3 = +e,q4= +4e,q5 = +2e,q6 = +8e,q7 = +6e with e = 1.60 x 10-19C. What is the magnitude of the net electro static force on particle 7? Figure 21-43 Problem 60. 4.arrow_forward(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.arrow_forward48 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_forward
- 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 Q2arrow_forward47. (III) A flat slab of nonconducting material has thickness 2d, which is small compared to its height and breadth. Define the x axis to be along the direction of the slab's thickness with the origin at the center of the slab (Fig. 22-41). If the slab carries a volume charge density PE(x) the region -d < x <0 and PE(x) = +po in the region 0 < xs +d, determine the electric field E as a function of x in the regions (a) outside the slab, = -Po in (b) 0 < x < +d, and (c) -d s x < 0. Let po be a positive constant. - +d FIGURE 22-41arrow_forward(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 marrow_forward
- 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?arrow_forward10 In Fig. 21-19, a central particle of charge -2g is +2q surrounded by a square array of charged particles, separated -79 +4q -5g -39 by either distance d or d2 along the perimeter of the square. What are the magni- +3q tude and direction of the net electrostatic force on the cen- -39 -59 tral particle due to the other particles? (Hint: Consideration of symmetry can greatly re- +4q +24 duce the amount of work re- -79 quired here.)arrow_forward(12-15) Consider two concentric conducting spherical shells. Inner shell carries an excess charge of +2 µC and outer shell carries +2 µC. In the figure, the inner shell has an inner radius of 0.1 m and an outer radius of 0.2 m, and the outer shell has an inner radius of 0.38 m and an outer radius of 0.5 m. darrow_forward
- lim פ )תו' Q 3/ Three electric charges of 1 uC each are placed at the corners of a right-angled triangle, calculate the magnitude and direction of the force acting on the vertex B 7:06 PM/arrow_forward(a) Red blood cells often become charged and can be treated as point charges. Healthy red blood cells are negatively charged, but unhealthy cells (due to the presence of a bacteria, for example) can become positively charged. In the figure, three red blood cells are oriented such that they are located on the corners of an equilateral triangle. The red blood cell charges are A = 2.20 pC, B = 7.50 pC, and C = −4.40 pC. Given these charges, what would the magnitude and direction of the electric field be at cell A? (1 pC = 1 ✕ 10−12 C.) magnitude directionarrow_forward35 SSM In crystals of the salt cesium chloride, cesium ions Cs+ form the eight corners of a cube and a chlorine ion Cl is at the cube's center (Fig. 21-36). The edge length of the cube is 0.40 nm. The Cst ions are each deficient by one electron (and thus each has a charge of +e), and the Cl- ion has one excess electron (and thus has a charge of -e). (a) What is the magnitude of the net electro- static force exerted on the Cl ion by the eight Cs ions at the cor- ners of the cube? (b) If one of the Cs* ions is missing, the crystal is said to have a defect; what is the magnitude of the net electrostatic force exerted on the Cl- ion by the seven remaining Cs+ ions? Cs+ 0.40 nmarrow_forward
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