MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB
4th Edition
ISBN: 9780135245033
Author: Knight
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3, Problem 45EAP
FIGURE P3.45 shows four electric charges located at the corners of a rectangle. Like charges, you will recall, repel each other while opposite charges attract. Charge B exerts a repulsive force (directly away from B) on charge A of 3.0 N. Charge C exerts an attractive force (directly toward C) on charge A of 6.0 N. Finally, charge D exerts an attractive force of 2.0 N on charge A. Assuming that forces are vectors, what are the magnitude and direction of the net force 
exerted on charge A?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Three positive charges are at the vertices of an equilateral triangle that measures 1 cm on a side . One charge is 6.7 nC, and the other two charges are both 2.0 nC. What is the magnitude of the net electric force on the 6.7 nC charge due to the other two charges?
Hint: Draw a good free body diagram for the 6.7 nC charge. Sketch the vector forces acting on it and sum their components in both directions.
=
Two charged particles, 9₁ and 92, are located on the x-axis, with q₁ at the origin and q2 initially at X₁ 13.3 mm. In this configuration, q₁ exerts a repulsive force of 2.62 µN on 92. Particle 92 is then
moved to X2
17.0 mm. What is the force (magnitude and direction) that q₂ exerts on q₁ at this new location? (Give the magnitude in µN.)
magnitude
μN
direction
---Select--- ↑
(Figure 1) shows four electrical charges located at the corners of a rectangle. Like charges, you will recall, repel each other while opposite charges attract. Charge B exerts a repulsive force (directly away from B) on charge A of 3.0 N. Charge C exerts an attractive force (directly toward C) on charge A of 6.0 N. Finally, charge D exerts an attractive force of 2.0 N on charge A.
1. Assuming that forces are vectors, what is the magnitude of the net force F⃗ netF→net exerted on charge A?
Express your answer in newtons.
2. What is the direction of the net force F⃗ netF→net exerted on charge A? Use the xy-plane with the origin at A and with x-axis directed to B.
Express your answer in degrees measured clockwise from the negative y-axis.
Chapter 3 Solutions
MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB
Ch. 3 - Can the magnitude of the displacement vector be...Ch. 3 - If C=A+B, can C = A + B? Can C>A + B? For each,...Ch. 3 - If C=A+B can C = 0? Can C< O? For each, show how...Ch. 3 - Is it possible to add a scalar to a vector? If so,...Ch. 3 - How would you define the zero vector ?Ch. 3 - Can a vector have a component equal to zero and...Ch. 3 - Can a vector have zero magnitude if one of its...Ch. 3 - Suppose two vectors have unequal magnitudes. Can...Ch. 3 - Are the following statements true or false?...Ch. 3 - I. Trace the vectors in FIGURE EX3.1 onto your...
Ch. 3 - Trace the vectors in FIGURE EX3.2 onto your paper....Ch. 3 - a. What are the x- and v-components of vector E...Ch. 3 - A velocity vector 40° below the positive x-axis...Ch. 3 - A position vector in the first quadrant has an...Ch. 3 - Draw each of the following vectors. Then find its...Ch. 3 - Draw each of the following vectors. Then find its...Ch. 3 - Let C = (3.15 m, 15° above the negative x-axis)...Ch. 3 - A runner is training for an upcoming marathon by...Ch. 3 - Draw each of the following vectors, label an angle...Ch. 3 - Draw each of the following vectors, label an angle...Ch. 3 - Let a. Write Vector Cin component form. b. Draw a...Ch. 3 - a. Write vector Cin component form. b. Draw a...Ch. 3 - a. Write vector Din component form. b. Draw a...Ch. 3 - Let A = 4î - 2j, B = -3î + 5j, and E = 2 A + 3 B...Ch. 3 - Let A = 41 - 2j, B = -3î + 5j, and F = A -4 B . a....Ch. 3 - 17. Let = 2î + 3? and = 2î — 2?. Find the...Ch. 3 - Prob. 18EAPCh. 3 - 19. What are the x– and y- components of the...Ch. 3 - 20. For the three vectors shown Figure EX3.20, + +...Ch. 3 - Prob. 21EAPCh. 3 - 22. Let = (3.0 m, 20° south of east), = (2.0 m,...Ch. 3 - The position of a particle as a function of time...Ch. 3 - a. What is the angle between vectors E and F in...Ch. 3 - FIGURE P3.25 shows vectors A and B . Find vector C...Ch. 3 - Prob. 26EAPCh. 3 - Prob. 27EAPCh. 3 - Prob. 28EAPCh. 3 - The minute hand on a watch is 2.0 cm in length....Ch. 3 - Prob. 30EAPCh. 3 - Ruth sets out to visit her friend Ward, who lives...Ch. 3 - A cannon tilted upward at 30° fires a cannonball...Ch. 3 - Prob. 33EAPCh. 3 - Prob. 34EAPCh. 3 - A pine cone falls straight down from a pine tree...Ch. 3 - Prob. 36EAPCh. 3 - Prob. 37EAPCh. 3 - Your neighbor Paul has rented a truck with a...Ch. 3 - Tom is climbing a 3.0-m-long ladder that leans...Ch. 3 - The treasure map in FIGURE P3.40 gives the...Ch. 3 - The bacterium E. coli is a single-cell organism...Ch. 3 - A flock of ducks is trying to migrate south for...Ch. 3 - FIGURE P3.43 shows three ropes tied together in a...Ch. 3 - I Four forces are exerted on the object shown in...Ch. 3 - FIGURE P3.45 shows four electric charges located...
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
- You are asked to consult for the city’s research hospital, where a group of doctors is investigating the bombardment of cancer tumors with high-energy ions. The ions are fired directly toward the center of the tumor at speeds of 5.0×10^6m/s. To cover the entire tumor area, the ions are deflected sideways by passing them between two charged metal plates that accelerate the ions perpendicular to the direction of their initial motion. The acceleration region is 5.0cm long, and the ends of the acceleration plates are 1.5m from the patient. What is the horizontal speed of the ion as it leaves the metal plates?arrow_forwardItem 6 A charged object with electric charge q produces an electric field. The SI unit for electric field is N/C, where N is the SI unit for force and C is the SI unit for charge. If at point P there are electric fields from two or more charged objects, then the resultant field is the vector sum of the fields from each object. At point P the electric field E₁ from charge q₁ is 250 N/C in the +y-direction, and the electric field E₂ from charge q2 is 600 N/C in the direction 36.9° from the -y-axis toward the -I-axis. esc ! 1 2 F2 W # 3 80 F3 E $ 4 ▾ PartA 888 F4 R What is the magnitude of the resultant field E=E₁ + E₂ at point P due to these two charges? Express your answer with the appropriate units. Submit Part B 0= Submit O I % X Incorrect; Try Again; 9 attempts remaining 5 HÅ Value Previous Answers Request Answer What is the direction angle of the resultant field E = E₁ + E₂ at point P due to these two charges measured from the +z-axis toward the +y-axis? Express your answer in…arrow_forwardA uranium ion and an iron ion are separated by a distance of ?=57.10 nm, as shown in the figure. The uranium atom is singly ionized; the iron atom is doubly ionized. Calculate the distance ? from the uranium atom at which an electron will be in equilibrium. Ignore the gravitational attraction between the particles. ?= What is the magnitude ?U of the force on the electron from the uranium ion?arrow_forward
- The electron and proton of a hydrogen atom are separated by a distance of approximately 5.3*10-11 m. Charge of electron (de)= -1.61*10-19 C, charge of proton (qp)= 1.61*10-19 C, electric constant (K₂)= 8.988*109 N.m²/C2. Find the electric force exerted by the proton on electron. Submit your answer in exponential form with four decimal places.arrow_forwardPleae help solve for magnitude.arrow_forwardIn a thundercloud there may be electric charges of +45.0 C near the top of the cloud and -45.0 C near the bottom of the cloud. These charges are separated by 1.50 km. What is the electric force on the top charge?magnitude N direction repulsive attractivearrow_forward
- Shown are the configuration of a gel electrophoresis experiment. Charged plates establish an electric field on a region of gel between the plates. A solution of DNA fragments, which acquire a negative charge in solution, is analyzed by using an electric field to drive the fragments through the gel. A drag force opposes the motion, causing the fragments to move at a constant speed. Larger fragments move more slowly, so the fragments separate by size to give a “fingerprint” of the sample. The fragments move in the direction of _________ electric potential and __________ electric potential energy.A. higher, higherB. higher, lowerC. lower, higherD. lower, lowerarrow_forwardCharges q1, 92 and q3 are arranged in the x-axis. Charge q3 = 14 nC and is at the origin. Charge q2 = -3.5 nC and is at x = 2 cm. Charge q1 is at x =2. Solve for q1 (magnitude and sign) if the net force on q3 is zero. Express your answer in nC.arrow_forwardShown are the configuration of a gel electrophoresis experiment. Charged plates establish an electric field on a region of gel between the plates. A solution of DNA fragments, which acquire a negative charge in solution, is analyzed by using an electric field to drive the fragments through the gel. A drag force opposes the motion, causing the fragments to move at a constant speed. Larger fragments move more slowly, so the fragments separate by size to give a “fingerprint” of the sample. In the system shown , the electric field is directed to the _____; the DNA fragments move to the _____.A. right, right B. right, leftC. left, right D. left, leftarrow_forward
- Part A (Figure 1) shows five electric charges. Four charges with the magnitude of the charge 2.0 nC form a square with the size a = 1.0 cm. Positive charge with the magnitude of q = 7.0 nC is placed in the center of the square. What is the magnitude of the force on the 7.0 nC charge in the middle of the figure due to the four other charges? Express your answer with the appropriate units. Figure y -2.0 nC a 2.0 nC + q + -2.0 nC 2.0 nC 1 of 1 μÅ ? Fon q = Value Units Submit Previous Answers Request Answer × Incorrect; Try Again; 4 attempts remaining Part B What is the direction of the force on the 7.0 nC charge in the middle of the figure due to the four other charges? Express your answer in degrees to two significant figures. x 0 = ΕΠΙ ΑΣΦ Submit Request Answer ? °, counterclockwise from the positive x-axisarrow_forwardU Resources A uranium ion and an iron ion are separated by a distance of R = 41.70 nm. The uranium atom is singly ionized; the iron atom is doubly ionized. Calculate the distance r from the uranium atom at which an electron will be in equilibrium. Ignore the gravitational attraction between the particles. uranium ion iron ion nm electron ++ R. What is the magnitude of the force on the electron from the uranium ion? magnitude of the force:arrow_forwardParticle 1 has mass 8.67 kg and charge 6.51 C. Particle 2 has mass 9.05 kg and charge 9.76 C. If these particles are placed a distance 1.45 m from each other, what is the magnitude of the force that particle 1 exerts on particle 2? Answer in units of N.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Introduction to Vectors and Their Operations; Author: Professor Dave Explains;https://www.youtube.com/watch?v=KBSCMTYaH1s;License: Standard YouTube License, CC-BY