College Physics1st EditionPaul Peter Urone, OpenStax, Roger Hinrichs Publisher: OpenStaxISBN: 9781938168048
College Physics
Solutions for College Physics
Problem 1CQ:
There are very large numbers of charged particles in most objects. Why, then, don't most objects...Problem 2CQ:
Why do most objects tend to contain nearly equal numbers of positive and negative charges?Problem 3CQ:
An eccentric inventor attempts to levitate by first placing a large negative charge on himself and...Problem 4CQ:
If you have charged an electroscope by contact with a positively charged object, describe how you...Problem 5CQ:
When a glass rod is rubbed with silk, it becomes negativeyet both attract dust. Does the dust have a...Problem 6CQ:
Why does a car always attract dust right after it is polished? (Note that car wax and car tires are...Problem 7CQ:
Describe how a positively charged object can be used to give another object a negative charge. What...Problem 8CQ:
What is grounding? What effect does it have on a charged conductor? On a charged insulator?Problem 9CQ:
Figure 18.43 shows the charge distribution in a water molecule, which is called a polar molecule...Problem 10CQ:
Using Figure 18.43, explain, in terms of Coulomb's law, why a polar molecule (such as in Figure...Problem 11CQ:
Given the polar character of water molecules, explain how ions in the air form nucleation centers...Problem 12CQ:
Why must the test charge q in the definition of the electric field be vanishingly small?Problem 13CQ:
Are the direction and magnitude of the Coulomb force unique at a given point in space? What about...Problem 14CQ:
Compare and contrast the Coulomb force field and the electric field. To do this, make a list of five...Problem 15CQ:
Figure 18.44 shows an electric field extending over three regions, labeled I, II, and III. Answer...Problem 16CQ:
A cell membrane is a thin layer enveloping a cell. The thickness of the membrane is much less than...Problem 18CQ:
If the electric field lines in the figure above were perpendicular to the object, would it...Problem 19CQ:
The discussion of the electric field between two parallel conducting plates, in this module states...Problem 20CQ:
Would the self-created electric field at the end of a pointed conductor, such as a lightning rod,...Problem 21CQ:
Why is a golfer with a metal dub over her shoulder vulnerable to lightning in an open fairway? Would...Problem 24CQ:
Discuss pros and cons of a lightning rod being grounded versus simply being attached to a building.Problem 25CQ:
Using the symmetry of the arrangement, show that the net Coulomb force on the charge q at the center...Problem 26CQ:
(a) Using the symmetry of the arrangement, show that the electric field at the center of the square...Problem 27CQ:
(a) What is the direction of the total Coulomb force on q in Figure 18.46 if q is negative, qa=...Problem 28CQ:
Considering Figure 18.46, suppose that qa= qdand qb= qc. First show that q is in static equilibrium....Problem 29CQ:
If qa = 0 in Figure 18-46, under what conditions will there be no net Coulomb force on q?Problem 30CQ:
In regions of low humidity, one develops a special "grip” when opening car doors, or touching metal...Problem 31CQ:
Tollbooth stations on roadways and bridges usually have a piece of wire stuck in the pavement before...Problem 32CQ:
Suppose a woman carries an excess charge. To maintain her charged status can she he standing on just...Problem 1PE:
Common static electricity involves charges ranging from nanocoulombs to microcoulombs. (a) How many...Problem 2PE:
If 1.801020electrons move through a pocket calculator during a full day’s operation, how many...Problem 3PE:
To start a car engine, the car battery moves 3.751021 electrons through the starter motor. How many...Problem 4PE:
A certain lightning bolt moves 40.0 C of charge. How many fundamental units of charge | qe\ is this?Problem 5PE:
Suppose a speck of dust in an electrostatic precipitator has l.0000 1012 protons in it and has a...Problem 6PE:
An amoeba has 1.001016protons and a net charge of 0.300 pC. (a) How many fewer electrons are there...Problem 7PE:
A 50.0 g ball of copper has a net charge of 2.00 C. What fraction of the copper s electrons has been...Problem 8PE:
What net charge would you place on a 100 g piece of sulfur if you put an extra electron on 1 in 1012...Problem 9PE:
How many coulombs of positive charge are there in 4.00 kg of plutonium, given its atomic mass is 244...Problem 10PE:
What is the repulsive force between two pith balls that are 8.00 cm apart and have equal charges of ...Problem 11PE:
(a) How strong is the attractive force between a glass rod with a 0.700 C charge and a silk cloth...Problem 12PE:
Two point charges exert a 5.00 N force on each other. What will the force become if the distance...Problem 13PE:
Two point charges are brought closer together, increasing the force between them by a factor of 25....Problem 14PE:
How far apart must two point charges of 75.0 nC (typical of static electricity) be to have a force...Problem 15PE:
If two equal charges each of 1 C each are separated in air by a distance of 1 km, what is the...Problem 16PE:
A test charge of +2C is placed halfway between a charge of +6 C and another of +4 /C separated by 10...Problem 17PE:
Bare free charges do not remain stationary when close together. To illustrate this, calculate the...Problem 18PE:
(a) By what factor must you change the distance between two point charges to change the force...Problem 19PE:
Suppose you have a total charge qtot that you can split in any manner. Once split, the separation...Problem 20PE:
(a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed...Problem 21PE:
Find the ratio of the electrostatic to gravitational force between two electrons. (b) What is this...Problem 22PE:
At what distance is the electrostatic force between two protons equal to the weight of one proton?Problem 23PE:
A certain five cent coin contains 5.00 g of nickel. What fraction of the nickel atoms’ electrons,...Problem 24PE:
(a) Two point charges totaling 8.00 C exert a repulsive force of 0.150 N on one another when...Problem 25PE:
Point charges of 5.00 C and 3.00/C are placed 0.250 m apart. (a) Where can a third charge be placed...Problem 26PE:
(a) Two point charges q1 and q23.00 m apart, and their total charge is 20 C. (a) If the force of...Problem 27PE:
What is the magnitude and direction of an electric field that exerts a 2.0010-5 N upward force on a...Problem 28PE:
What is the magnitude and direction of the force exerted on a 3.50 /C charge by a 250 N/C electric...Problem 29PE:
Calculate the magnitude of the electric field 2.00 m from a point charge of 5.00 mC (such as found...Problem 30PE:
(a) What magnitude point charge creates a 10,000 N/C electric field at a distance of 0.250 m? (b)...Problem 31PE:
Calculate the initial (from rest) acceleration of a proton in a 5.00X106 N/C electric field (such as...Problem 32PE:
(a) Find the direction and magnitude of an electric field that exerts a 4.801017 N westward force on...Problem 33PE:
(a) Sketch the electric field lines near a point charge +q (b) Do the same for a point charge +q....Problem 34PE:
Sketch the electric field lines a long distance from the charge distributions shown in Figure 18.26...Problem 35PE:
Figure 18.47 shows the electric field lines near two charges q j and g2. What is the ratio of their...Problem 36PE:
Sketch the electric field lines in the vicinity of two opposite charges, where the negative charge...Problem 37PE:
Sketch the electric field lires in the vicinity of the conductor in Figure 18.48 given the field was...Problem 38PE:
Sketch the electric field lines in the vicinity of the conductor in Figure 18.49 given the field was...Problem 39PE:
Sketch the electric field between the two conducting plates shown in Figure 18.50, given the top...Problem 40PE:
Sketch the electric field lines in the vicinity of the charged insulator in Figure 18.51 noting its...Problem 41PE:
What is the force on the charge located at x = 8.00 cm in Figure 18.52(a) given that q = 1.00 C?Problem 42PE:
(a) Find the total electric field at x = 1.00 cm in Figure 18.52(b) given that q =5.00 nC. (b) Find...Problem 43PE:
(a) Find the electric field at x = 5.00 cm in Figure 18.52 (a), given that q = 1.00 C. (b) at what...Problem 44PE:
(a) Find the total Coulomb force on a charge of 2.00 nC located at x = 4.00 cm in Figure 18.52 (b):...Problem 45PE:
Using the symmetry of the arrangement, determine the direction of the force on q in the figure...Problem 46PE:
(a) Using the symmetry of the arrangement, determine the direction of the electric field at the...Problem 47PE:
Find the electric field at the location of qain Figure 18.53 given that qb=qc= qd=+2.00 nC, q= -1.00...Problem 48PE:
48. Find the total Coulomb force on a charge q in Figure 18.53, given that q = 1.00 C, qa=2.00 C,...Problem 49PE:
Find the electric field at the location of qain Figure 18.54, given that qb=+10.00 C and qc= -5.00...Problem 50PE:
(a) Find the electric field at the center of the triangular configuration of charges in Figure...Problem 51PE:
(a) What is the electric field 5.00 m from the center of the terminal of a Van de Graaff with a 3.00...Problem 52PE:
(a) What is the direction and magnitude of an electric field that supports the weight of a free...Problem 53PE:
A simple and common technique for accelerating electrons is shown in Figure 18.55, where there is a...Problem 54PE:
Earth has a net charge that produces an electric field of approximately 150 N/C downward at its...Problem 55PE:
Point charges of 25.0 C and 45.0 (2 are placed 0.500 m apart. (a) At what point along the line...Problem 56PE:
What can you say about two charges q1and q2, if the electric field one-fourth of the way from q1to...Problem 57PE:
Integrated Concepts Calculate the angular velocity ? of an electron orbiting a proton in the...Problem 58PE:
Integrated Concepts An electron has an initial velocity of 5.00106m/s in a uniform 2.00105N/C...Problem 59PE:
Integrated Concepts The practical limit to an electric field in air is about 3.001061 N/C. Above...Problem 60PE:
Integrated Concepts A 5.00 g charged insulating ball hangs or a 30.0 cm long string in a uniform...Problem 61PE:
Integrated Concepts Figure 18.57 shows an electron passing between two charged metal plates that...Problem 62PE:
Integrated Concepts The classic Millikan oil drop experiment was the first to obtain an accurate...Problem 63PE:
Integrated Concepts (a) In Figure 18.59, four equal charges q lie on the corners of a square. A...Problem 64PE:
Unreasonable Results 64. (a) Calculate the electric field strength near a 10.0 cm diameter...Problem 65PE:
Unreasonable results (a) Two 0.500 g raindrops in a thunderhead are 1.00 cm apart when they each...Problem 66PE:
Unreasonable results A wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter...Browse All Chapters of This Textbook
Chapter 1 - Introduction: The Nature Of Science And PhysicsChapter 2 - KinematicsChapter 3 - Two-dimensional KinematicsChapter 4 - Dynamics: Force And Newton's Laws Of MotionChapter 5 - Further Applications Of Newton's Laws: Friction, Drag, And ElasticityChapter 6 - Uniform Circular Motion And GravitationChapter 7 - Work, Energy, And Energy ResourcesChapter 8 - Linear Momentum And CollisionsChapter 9 - Statics And TorqueChapter 10 - Rotational Motion And Angular Momentum
Chapter 11 - Fluid StaticsChapter 12 - Fluid Dynamics And Its Biological And Medical ApplicationsChapter 13 - Temperature, Kinetic Theory, And The Gas LawsChapter 14 - Heat And Heat Transfer MethodsChapter 15 - ThermodynamicsChapter 16 - Oscillatory Motion And WavesChapter 17 - Physics Of HearingChapter 18 - Electric Charge And Electric FieldChapter 19 - Electric Potential And Electric FieldChapter 20 - Electric Current, Resistance, And Ohm's LawChapter 21 - Circuits And Dc InstrumentsChapter 22 - MagnetismChapter 23 - Electromagnetic Induction, Ac Circuits, And Electrical TechnologiesChapter 24 - Electromagnetic WavesChapter 25 - Geometric OpticsChapter 26 - Vision And Optical InstrumentsChapter 27 - Wave OpticsChapter 28 - Special RelativityChapter 29 - Introduction To Quantum PhysicsChapter 30 - Atomic PhysicsChapter 31 - Radioactivity And Nuclear PhysicsChapter 32 - Medical Applications Of Nuclear PhysicsChapter 33 - Particle PhysicsChapter 34 - Frontiers Of Physics
Sample Solutions for this Textbook
We offer sample solutions for College Physics homework problems. See examples below:
Chapter 1, Problem 1CQChapter 2, Problem 1CQChapter 3, Problem 1CQChapter 4, Problem 1CQChapter 5, Problem 1CQChapter 6, Problem 1CQChapter 7, Problem 1CQChapter 8, Problem 1CQChapter 9, Problem 1CQ
Chapter 10, Problem 1CQChapter 11, Problem 1CQChapter 12, Problem 1CQChapter 13, Problem 1CQChapter 14, Problem 1CQChapter 15, Problem 1CQChapter 16, Problem 1CQChapter 17, Problem 1CQChapter 18, Problem 1CQChapter 19, Problem 1CQChapter 20, Problem 1CQChapter 21, Problem 1CQChapter 22, Problem 1CQChapter 23, Problem 1CQChapter 24, Problem 1CQChapter 25, Problem 1CQChapter 26, Problem 1CQChapter 27, Problem 1CQChapter 28, Problem 1CQChapter 29, Problem 1CQChapter 30, Problem 1CQChapter 31, Problem 1CQChapter 32, Problem 1CQChapter 33, Problem 1CQChapter 34, Problem 1CQ
More Editions of This Book
Corresponding editions of this textbook are also available below:
COLLEGE PHYSICS (OER)
1st Edition
ISBN: 9781947172012
COLLEGE PHYSICS
2nd Edition
ISBN: 9781711470832
COLLEGE PHYSICS
13th Edition
ISBN: 2810014673880
College Physics for AP Courses
1st Edition
ISBN: 9781630181871
College Physics For Ap® Courses
16th Edition
ISBN: 9781938168932
College Physics
1st Edition
ISBN: 9781938168000
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