Physics for Scientists and Engineers, Technology Update, Hybrid Edition (with Enhanced WebAssign Multi-Term LOE Printed Access Card for Physics)
9th Edition
ISBN: 9781305116429
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 23, Problem 23.73AP
Two small spheres hang in equilibrium at the bottom ends of threads, 40.0 cm long, that have their top ends tied to the same fixed point. One sphere has mass 2.40 g and charge +300 nC. The other sphere has the same mass and charge +200 nC. Find the distance between the centers of the spheres.
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Chapter 23 Solutions
Physics for Scientists and Engineers, Technology Update, Hybrid Edition (with Enhanced WebAssign Multi-Term LOE Printed Access Card for Physics)
Ch. 23 - Three objects are brought close to each other, two...Ch. 23 - Three objects are brought close to one another,...Ch. 23 - Object A has a charge of +2 C, and object B has a...Ch. 23 - A test charge of +3 C is at a point P where an...Ch. 23 - Rank the magnitudes of the electric field at...Ch. 23 - A free electron and a free proton are released in...Ch. 23 - Prob. 23.2OQCh. 23 - A very small ball has a mass of 5.00 103 kg and a...Ch. 23 - An electron with a speed of 3.00 106 m/s moves...Ch. 23 - A point charge of 4.00 nC is located at (0, 1.00)...
Ch. 23 - A circular ring of charge with radius b has total...Ch. 23 - What happens when a charged insulator is placed...Ch. 23 - Estimate the magnitude of the electric field due...Ch. 23 - (i) A metallic coin is given a positive electric...Ch. 23 - Assume the charged objects in Figure OQ23.10 are...Ch. 23 - Three charged particles are arranged on corners of...Ch. 23 - Two point charges attract each other with an...Ch. 23 - Assume a uniformly charged ring of radius R and...Ch. 23 - An object with negative charge is placed in a...Ch. 23 - The magnitude of the electric force between two...Ch. 23 - (a) Would life be different if the electron were...Ch. 23 - A charged comb often attracts small bits of dry...Ch. 23 - A person is placed in a large, hollow, metallic...Ch. 23 - A student who grew up in a tropical country and is...Ch. 23 - If a suspended object A is attracted to a charged...Ch. 23 - Consider point A in Figure CQ23.6 located an...Ch. 23 - In fair weather, there is an electric field at the...Ch. 23 - Why must hospital personnel wear special...Ch. 23 - A balloon clings to a wall after it is negatively...Ch. 23 - Consider two electric dipoles in empty space. Each...Ch. 23 - A glass object receives a positive charge by...Ch. 23 - Find to three significant digits the charge and...Ch. 23 - (a) Calculate the number of electrons in a small,...Ch. 23 - Two protons in an atomic nucleus are typically...Ch. 23 - A charged particle A exerts a force of 2.62 N to...Ch. 23 - In a thundercloud, there may be electric charges...Ch. 23 - (a) Find the magnitude of the electric force...Ch. 23 - Review. A molecule of DNA (deoxyribonucleic acid)...Ch. 23 - Nobel laureate Richard Feynman (19181088) once...Ch. 23 - A 7.50-nC point charge is located 1.80 m from a...Ch. 23 - (a) Two protons in a molecule are 3.80 10-10 m...Ch. 23 - Three point charges are arranged as shown in...Ch. 23 - Three point charges lie along a straight line as...Ch. 23 - Two small beads having positive charges q1 = 3q...Ch. 23 - Two small beads having charges q1 and q2 of the...Ch. 23 - Three charged panicles are located at the corners...Ch. 23 - Two small metallic spheres, each of mass m = 0.200...Ch. 23 - Review. In the Bohr theory of the hydrogen atom,...Ch. 23 - Particle A of charge 3.00 104 C is at the origin,...Ch. 23 - A point charge +2Q is at the origin and a point...Ch. 23 - Review. Two identical particles, each having...Ch. 23 - Two identical conducting small spheres are placed...Ch. 23 - Why is the following situation impossible? Two...Ch. 23 - What are the magnitude and direction of the...Ch. 23 - A small object of mass 3.80 g and charge 18.0 C is...Ch. 23 - Four charged particles are at the corners of a...Ch. 23 - Three point charges lie along a circle of radius r...Ch. 23 - Two equal positively charged particles are at...Ch. 23 - Consider n equal positively charged particles each...Ch. 23 - In Figure P23.29, determine the point (other than...Ch. 23 - Three charged particles are at the corners of an...Ch. 23 - Three point charges are located on a circular arc...Ch. 23 - Two charged particles are located on the x axis....Ch. 23 - A small, 2.00-g plastic ball is suspended by a...Ch. 23 - Two 2.00-C point charges are located on the x...Ch. 23 - Three point charges are arranged as shown in...Ch. 23 - Consider the electric dipole shown in Figure...Ch. 23 - A rod 14.0 cm long is uniformly charged and has a...Ch. 23 - A uniformly charged disk of radius 35.0 cm carries...Ch. 23 - A uniformly charged ring of radius 10.0 cm has a...Ch. 23 - The electric field along the axis of a uniformly...Ch. 23 - Example 23.3 derives the exact expression for the...Ch. 23 - A uniformly charged rod of length L and total...Ch. 23 - A continuous line of charge lies along the x axis,...Ch. 23 - A thin rod of length and uniform charge per unit...Ch. 23 - A uniformly charged insulating rod of length 14.0...Ch. 23 - (a) Consider a uniformly charged, thin-walled,...Ch. 23 - A negatively charged rod of finite length carries...Ch. 23 - A positively charged disk has a uniform charge per...Ch. 23 - Figure P23.49 shows the electric field lines for...Ch. 23 - Three equal positive charges q are at the corners...Ch. 23 - A proton accelerates from rest in a uniform...Ch. 23 - A proton is projected in the positive x direction...Ch. 23 - An electron and a proton are each placed at rest...Ch. 23 - Protons are projected with an initial speed vi =...Ch. 23 - The electrons in a particle beam each have a...Ch. 23 - Two horizontal metal plates, each 10.0 cm square,...Ch. 23 - A proton moves at 4.50 105 m/s in the horizontal...Ch. 23 - Three solid plastic cylinders all have radius 2.50...Ch. 23 - Consider an infinite number of identical...Ch. 23 - A particle with charge 3.00 nC is at the origin,...Ch. 23 - A small block of mass m and charge Q is placed on...Ch. 23 - A small sphere of charge q1 = 0.800 C hangs from...Ch. 23 - A line of charge starts at x = +x0 and extends to...Ch. 23 - A small sphere of mass m = 7.50 g and charge q1 =...Ch. 23 - A uniform electric field of magnitude 640 N/C...Ch. 23 - Two small silver spheres, each with a mass of 10.0...Ch. 23 - A charged cork ball of mass 1.00 g is suspended on...Ch. 23 - A charged cork ball of mass m is suspended on a...Ch. 23 - Three charged particles are aligned along the x...Ch. 23 - Two point charges qA = 12.0 C and qB = 45.0 C and...Ch. 23 - A line of positive charge is formed into a...Ch. 23 - Four identical charged particles (q = +10.0 C) are...Ch. 23 - Two small spheres hang in equilibrium at the...Ch. 23 - Why is the following situation impossible? An...Ch. 23 - Review. Two identical blocks resting on a...Ch. 23 - Review. Two identical blocks resting on a...Ch. 23 - Three identical point charges, each of mass m =...Ch. 23 - Show that the maximum magnitude Emax of the...Ch. 23 - Two hard rubber spheres, each of mass m = 15.0 g,...Ch. 23 - Two identical beads each have a mass m and charge...Ch. 23 - Two small spheres of mass m are suspended from...Ch. 23 - Review. A negatively charged particle q is placed...Ch. 23 - Review. A 1.00-g cork ball with charge 2.00 C is...Ch. 23 - Identical thin rods of length 2a carry equal...Ch. 23 - Eight charged panicles, each of magnitude q, are...Ch. 23 - Consider the charge distribution shown in Figure...Ch. 23 - Review. An electric dipole in a uniform horizontal...Ch. 23 - Inez is putting up decorations for her sisters...Ch. 23 - A line of charge with uniform density 35.0 nC/m...Ch. 23 - A particle of mass m and charge q moves at high...Ch. 23 - Two particles, each with charge 52.0 nC, are...
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- Identical thin rods of length 2a carry equal charges +Q uniformly distributed along their lengths. The rods lie along the x axis with their centers separated by a distance b 2a (Fig. P23.30). Show that the magnitude of the force exerted by the left rod on the right one is F=(keQ24a2)ln(b2b24a2) Figure P23.50arrow_forwardA small sphere of charge q1 = 0.800 C hangs from the end of a spring as in Figure P22.32a. When another small sphere of charge q2 = 0.600 C is held beneath the first sphere as in Figure P22.32b, the spring stretches by d = 3.50 cm from its original length and reaches a new equilibrium position with a separation between the charges of r = 5.00 cm. What is the force constant of the spring? Figure P22.32arrow_forwardA Figure P23.65 shows two identical conducting spheres, each with charge q, suspended from light strings of length L. If the equilibrium angle the strings make with the vertical is , what is the mass m of the spheres? Figure P23.65arrow_forward
- An electroscope is a device used to measure the (relative) charge on an object (Fig. P23.20). The electroscope consists of two metal rods held in an insulated stand. The bent rod is fixed, and the straight rod is attached to the bent rod by a pivot. The straight rod is free to rotate. When a positively charged object is brought close to the electroscope, the straight movable rod rotates. Explain your answers to these questions: a. Why does the rod rotate in Figure P23.20? b. If the positively charged object is removed, what happens to the electroscope? c. If a negatively charged object replaces the positively charged object in Figure P23.20, what happens to the electroscope? d. If a charged object touches the top of the fixed conducting rod and is then removed, what happens to the electroscope?arrow_forwardTwo small beads having positive charges q1 = 3q and q2 = q are fixed at the opposite ends of a horizontal insulating rod of length d = 1.50 m. The bead with charge q1 is at the origin. As shown in Figure P19.7, a third small, charged bead is free to slide on the rod. (a) At what position x is the third bead in equilibrium? (b) Can the equilibrium be stable?arrow_forwardA very small ball has a mass of 5.00 103 kg and a charge of 4.00 C. What magnitude electric field directed upward will balance the weight of the ball so that the ball is suspended motionless above the ground? (a) 8.21 102 N/C (b) 1.22 104 N/C (c) 2.00 102 N/C (d) 5.11 106 N/C (e) 3.72 103 N/Carrow_forward
- An electron with a speed of 3.00 106 m/s moves into a uniform electric field of magnitude 1.00 103 N/C. The field lines are parallel to the electrons velocity and pointing in the same direction as the velocity. How far does the electron travel before it is brought to rest? (a) 2.56 cm (b) 5.12 cm (c) 11.2 cm (d) 3.34 m (e) 4.24 marrow_forwardA metal sphere with charge +8.00 nC is attached to the left-hand end of a nonconducting rod of length L = 2.00 m. A second sphere with charge +2.00 nC is fixed to the right-hand end of the rod (Fig. P23.53). At what position d along the rod can a charged bead be placed for the bead to be in equilibrium? FIGURE P23.53arrow_forwardAn infinite line of positive charge lies along the y axis, with charge density = 2.00 C/m. A dipole is placed with its center along the x axis at x = 25.0 cm. The dipole consists of two charges 10.0 C separated by 2.00 cm. The axis of the dipole makes an angle of 35.0 with the x axis, and the positive charge is farther from the line of charge than the negative charge. Find the net force exerted on the dipole.arrow_forward
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