University Physics (14th Edition)
14th Edition
ISBN: 9780133969290
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 21, Problem 21.22E
BIO Base Pairing in DNA, II. Refer to Exercise 21.21. Figure E21.22 shows the bonding of cytosine and guanine. The O—H and H—N distances are each 0.110 nm. In this case, assume that the bonding is due only to the forces along the O—H—O, N—H—N, and O—H—N combinations, and assume also that these three combinations are parallel to each other. Calculate the net force that cytosine exerts on guanine due to the preceding three combinations. Is this force attractive or repulsive?
Figure E21.22
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
8
What is the value of the electrical force acting on the object according to the system in the figure? (Surface charge density is 8.85.10^(-9) C/m^2, q= 4.10^(-3)C)
a)
1,2
B)
one thousand
NS)
5.6
D)
one
TO)
4
Use the following constants if necessary. Coulomb constant, k=8.987×109N⋅m2/C2. Vacuum permittivity, ϵ0=8.854×10−12F/m. The magnitude of the Charge of one electron, e=−1.60217662×10−19C. Mass of one electron, me=9.10938356×10−31kg. Unless specified otherwise, each symbol carries its usual meaning. For example, μC means microcoulomb.
A line of charge of length L=12m with charge density λ=48.0μC/m lies along the positive Y axis whose one end is at the origin O. A point charge q=49.0μC lies on the X axis at (44,0,0) and point P lies on the Z axis at 13m from the origin. Here the coordiates are given in meters.
Given, the electric field at P due to only the point charge q:
x - component = -200.6
y - component = 0
z - component = 59.3
a) Find the x, y and z components of the electric field at P due to the line of charge only. (Hint: You may have to do an integration.)
b) Find the x, y and z components of the net electric field at point P
Use the following constants if necessary. Coulomb constant, k=8.987×10^9N⋅m2/C2. Vacuum permittivity, ϵ0=8.854×10^−12F/m. Magnitude of the Charge of one electron, e=−1.60217662×10^−19C. Mass of one electron, me=9.10938356×10^−31kg. Unless specified otherwise, each symbol carries their usual meaning. For example, μC means microcoulomb.
Suppose you have 5-point charges q1 to q5 distributed along a semi-circle maintaining equal distance. The charge q6 is on the center of the circle which is also the origin of given coordinate system. The radius of the semi-circle is R=18cm and the magnitude of the charges are as follows: q1=q5=33μC, q2=q4=27μC and q3=q6=−33μC.
a)Find the vector that points from q1to q6 and call it r⃗ 1,6.
x component of the vector
y component of the vector b) Calculate the coulomb force on q6 due to q1 in unit vector notation and call it F⃗ 1,6.
x component of the force
y component of the force
c)Find the vector that points from q3to q6 and call it r⃗…
Chapter 21 Solutions
University Physics (14th Edition)
Ch. 21 - If you peel two strips of transparent tape off the...Ch. 21 - Two metal spheres are hanging from nylon threads....Ch. 21 - The electric force between two charged particles...Ch. 21 - Your clothing tends to cling together after going...Ch. 21 - An uncharged metal sphere hangs from a nylon...Ch. 21 - BIO Estimate how many electrons there are in your...Ch. 21 - Figure Q2I.7 shows some of the electric field...Ch. 21 - Good conductors of electricity, such as metals,...Ch. 21 - Suppose that the charge shown in Fig. 21.28a is...Ch. 21 - Two identical metal objects are mounted on...
Ch. 21 - Because the charges on the electron and proton...Ch. 21 - If you walk across a nylon rug and then touch a...Ch. 21 - You have a negatively charged object. How can you...Ch. 21 - When two point charges of equal mass and charge...Ch. 21 - A point charge of mass m and charge Q and another...Ch. 21 - A proton is placed in a uniform electric field and...Ch. 21 - In Example 21.1 (Section 21.3) we saw that the...Ch. 21 - What similarities do electric forces have with...Ch. 21 - Two irregular objects A and B carry charges of...Ch. 21 - Atomic nuclei are made of protons and neutrons....Ch. 21 - Sufficiently strong electric fields can cause...Ch. 21 - The electric fields at point P due to the positive...Ch. 21 - The air temperature and the velocity of the air...Ch. 21 - Excess electrons are placed on a small lead sphere...Ch. 21 - Lightning occurs when there is a flow of electric...Ch. 21 - If a proton and an electron are released when they...Ch. 21 - Particles in a Gold Ring. You have a pure...Ch. 21 - BIO Signal Propagation in Neurons. Neurons are...Ch. 21 - Two small spheres spaced 20.0 cm apart have equal...Ch. 21 - An average human weighs about 650 N. If each of...Ch. 21 - Two small aluminum spheres, each having mass...Ch. 21 - Two small plastic spheres are given positive...Ch. 21 - Just How Strong Is the Electric Force? Suppose you...Ch. 21 - In an experiment in space, one proton is held...Ch. 21 - A negative charge of 0.550 C exerts an upward...Ch. 21 - Three point charges are arranged on a line. Charge...Ch. 21 - In Example 21.4, suppose the point charge on the...Ch. 21 - In Example 21.3, calculate the net force on charge...Ch. 21 - In Example 21.4, what is the net force (magnitude...Ch. 21 - Three point charges are arranged along the...Ch. 21 - Repeat Exercise 21.17 for q3 = +8.00 C.Ch. 21 - Two point charges are located on the y-axis as...Ch. 21 - Two point charges are placed on the .x -axis as...Ch. 21 - BIO Base Pairing in DNA, I. The two sides of the...Ch. 21 - BIO Base Pairing in DNA, II. Refer to Exercise...Ch. 21 - CP A proton is placed in a uniform electric field...Ch. 21 - A particle has charge 5.00 nC. (a) Find the...Ch. 21 - CP A proton is traveling horizontally to the right...Ch. 21 - CP An electron is released from rest in a uniform...Ch. 21 - (a) What must the charge (sign and magnitude) of a...Ch. 21 - Electric Field of the Earth. The earth has a net...Ch. 21 - CP An electron is projected with an initial speed...Ch. 21 - (a) Calculate the magnitude and direction...Ch. 21 - CP In Exercise 21.29, what is the speed of the...Ch. 21 - CP A uniform electric field exists in the region...Ch. 21 - A point charge is at the origin. With this point...Ch. 21 - A +8.75-C point charge is glued down on a...Ch. 21 - (a) An electron is moving east in a uniform...Ch. 21 - Two point charges Q and +q (where q is positive)...Ch. 21 - Two positive point charges q are placed on the...Ch. 21 - The two charges q1 and q2 shown in Fig. E21.38...Ch. 21 - A +2.00-nC point charge is at the origin, and a...Ch. 21 - Repeat Exercise 21.39, hut now let the charge at...Ch. 21 - Three negative point charges lie along a line as...Ch. 21 - A point charge is placed at each corner of a...Ch. 21 - Two point charges are separated by 25.0 cm (Fig....Ch. 21 - Point charge q1 = 5.00 nC is at the origin and...Ch. 21 - If two electrons are each 1.50 1010 m from a...Ch. 21 - BIO Electric Field of Axons. A nerve signal is...Ch. 21 - In a rectangular coordinate system a positive...Ch. 21 - A point charge q1 = 4.00 nC is at the point x =...Ch. 21 - A charge of 6.50nC is spread uniformly over the...Ch. 21 - A very long, straight wire has charge per unit...Ch. 21 - A ring-shaped conductor with radius a = 2.50 cm...Ch. 21 - A straight, nonconducting plastic wire 8.50 cm...Ch. 21 - Point charges q1 = 4.5 nC and q2 = +4.5 nC are...Ch. 21 - The ammonia molecule (NH3) has a dipole moment of...Ch. 21 - Torque on a Dipole. An electric dipole with dipole...Ch. 21 - The dipole moment of the water molecule (H2O) is...Ch. 21 - Three charges are at the corners of an isosceles...Ch. 21 - Consider the electric dipole of Example 21.14. (a)...Ch. 21 - Four identical charges Q are placed at the corners...Ch. 21 - Two charges are placed on the x-axis: one, of 2.50...Ch. 21 - A charge q1 = +5.00 nC is placed at the origin of...Ch. 21 - CP Two identical spheres with mass m are hung from...Ch. 21 - CP Two small spheres with mass m = 15.0 g are hung...Ch. 21 - CP Two identical spheres are each attached to silk...Ch. 21 - CP A small 12.3-g plastic ball is tied to a very...Ch. 21 - Point charge q1 = 6.00 106 C is on the x-axis at...Ch. 21 - Two particles having charges q1 = 0.500 nC and q2...Ch. 21 - A 3.00-nC point charge is on the x-axis at x =...Ch. 21 - A charge +Q is located at the origin, and a charge...Ch. 21 - A charge of 3.00 nC is placed at the origin of an...Ch. 21 - Three identical point charges q are placed at each...Ch. 21 - Two point charges q1 and q2 are held in place 4.50...Ch. 21 - . CP Strength of the Electric Force. Imagine two...Ch. 21 - CP Two tiny spheres of mass 6.80 mg carry charges...Ch. 21 - CP Consider a model of a hydrogen atom in which an...Ch. 21 - The earth has a downward-directed electric field...Ch. 21 - CP A proton is projected into a uniform electric...Ch. 21 - A small object with mass m, charge q, and initial...Ch. 21 - CALC Positive charge Q is distributed uniformly...Ch. 21 - In a region where there is a uniform electric...Ch. 21 - A negative point charge q1 = 4.00 nC is on the...Ch. 21 - CALC Positive charge Q is distributed uniformly...Ch. 21 - A uniformly charged disk like the disk in Fig....Ch. 21 - CP A small sphere with mass m carries a positive...Ch. 21 - CALC Negative charge Q is distributed uniformly...Ch. 21 - CALC A semicircle of radius a is in the first and...Ch. 21 - Two 1.20-m non- conducting rods meet at a right...Ch. 21 - Two very large parallel sheets are 5.00 cm apart....Ch. 21 - Repeat Problem 21.88 for the case where sheet B is...Ch. 21 - Two very large horizontal sheets are 4.25 cm apart...Ch. 21 - CP A thin disk with a circular hole at its center,...Ch. 21 - DATA CP Design of an Inkjet Printer. Inkjet...Ch. 21 - DATA Two small spheres, each carrying a net...Ch. 21 - DATA Positive charge Q is distributed uniformly...Ch. 21 - Three charges are placed as shown in Fig. P21.95....Ch. 21 - Two charges are placed as shown in Fig. P21.96....Ch. 21 - CALC Two thin rods of length L lie along the...Ch. 21 - BIO ELECTRIC BEES. Flying insects such as bees may...Ch. 21 - BIO ELECTRIC BEES. Flying insects such as bees may...Ch. 21 - After one bcc left a flower with a positive...Ch. 21 - In a follow-up experiment, a charge of +40 pC was...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Predict the relative brightness of bulbs B1,B1,andB3 in the circuits shown. (A dashed box has been drawn around...
Tutorials in Introductory Physics
51. A myelinated axon conducts nerve impulses at a speed of 40 m/s. What is the signal speed if the thickness o...
College Physics: A Strategic Approach (4th Edition)
The power dissipated in the electric heater.
Physics (5th Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
93. What patterns of alteration are characteristic of contact metamorphism?
Conceptual Physical Science (6th Edition)
Figure 14.37 shows a wave train consisting of two sine wave cycles propagating along a string. Obtain an expres...
Essential University Physics (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- 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_forward(a) Find the total Coulomb force on a charge of 2.00 nC located at x = 4.00 cm in Figure 18.52 (b): given that q = 1,00C . (b) Find the x-position at which the electric field is zero in Figure 18.52 (b).arrow_forwardA water molecule is made up of two hydrogen atoms and one oxygen atom, with a total of 10 electrons and 10 protons. The molecule is modeled as a dipole with an effective separation d = 3.9 1012 m between its positive and negative particles. What is the electric potential energy stored in the dipole? What does the sign of your answer mean?arrow_forward
- A point charge of 4.00 nC is located at (0, 1.00) m. What is the x component of the electric field due to the point charge at (4.00, 2.00) m? (a) 1.15 N/C (b) 0.864 N/C (c) 1.44 N/C (d) 1.15 N/C (e) 0.864 N/Carrow_forwardReview. A molecule of DNA (deoxyribonucleic acid) is 2.17m long. The ends of the molecule become singly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 1.00% upon becoming charged. Determine the effective spring constant of the molecule.arrow_forwardA small rigid object carries positive and negative 3 .50-nC charges. It is oriented so that the positive charge has coordinates (1.20 mm, 1.10 mm) and the negative charge is at the point (1.40 mm. 1.30 nun), (a) Find the electric dipole moment of the object. The object is placed in an electric field E = (7.80 103 i 4.90 103 j ) N/C. (b) Find the torque acting on the object, (c) Find the potential energy of the object-field system when the object is in this orientation, (d) Assuming the orientation of the object can change. find the difference between the maximum and minimum potential energies of the system.arrow_forward
- A very long straight wire has charge per unit length 1.46×10−10 C/m. At what distance from the wire is the magnitude of the electric field equal to 2.50 N/C ? Use 8.85×10−12 C2/(N⋅m2) for the permittivity of free space, and use π=3.14159.arrow_forwardTwo stationary, positive, point charges that are originally separated by a distance of 6.00 cm experience a mutually repulsive force of magnitude 8.00 μN. What will be the magnitude of the repulsive force between the two charges when their distance of separation is reduced to 1.50 cm? a. 128 μN b. 32.0 μN c. 96.0 μN d. 160 μN e. 64.0 μNarrow_forwardA water molecule consists of two hydrogen atoms bonded with one oxygen atom. The bond angle between the two hydrogen atoms is 104° (see below). Calculate the net dipole moment (in C · m) of a water molecule that is placed in a uniform, horizontal electric field of magnitude 5.4 ✕ 10−8 N/C. (Only calculate the permanent dipole moment based on charge distributions shown in the figure, and exclude any induced dipole moment. The O–H bond length in water is 0.958 angstroms. Express your answer in vector form. Assume that the +x-axis is to the right and the +y-axis is up along the page.) p = _____ C · marrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY