Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 20, Problem 45P
FIGURE 20.20 Problems 44 and 45
In Fig. 20.29, take q1 = 25 μC and q2 = 20 μC. If the force on q1 points in the −x-direction. find (a) q3 and (b) the magnitude of the force on q1.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
question g and h..
The friends now try a homework problem.
Consider an electron, of charge magnitude e = 1.602 × 10-¹⁹ C and mass me = 9.11 x 10-31 kg, moving in an elect
field with an electric field magnitude E = 7 x 10² N/C, similar to what Thana observed in the simulation. Let the leng
the plates be L = 50 cm, and the distance between them be d = 20 cm. Find the maximum speed, v, the electron co
be moving if it enters the space halfway between and parallel to the two plates to just barely strike one of the plates
7.01e+06 X m/s
If the field is pointing upward, which plate will Thana conclude the electron strikes at this speed?
The lower plate, because the electron is negatively charged.
The lower plate, because the electron is attracted to the negative plate.
The upper plate, because we are only considering the magnitude of the electron charge, and magnitudes are
always positive.
O
The upper plate, because the electron charge magnitude is positive.
In (Figure 1), take q1 = 62 µC, q2 = -32 µC, and
g- 12 μC.
Figure
у (m)
2-
O 43
10
92
x (m)
3
2
Find the components of the electric force on q3.
Enter your answers in newtons to two significant figures separated by a comma.
ΑΣφ
?
F3z, F3y =
N
Chapter 20 Solutions
Essential University Physics (3rd Edition)
Ch. 20.1 - The proton is a composite particle composed of...Ch. 20.2 - Charge q1 is located at x = 1 m, y = 0. What...Ch. 20.3 - A positive point charge is located at the origin...Ch. 20.4 - Far from a charge distribution, you measure an...Ch. 20.5 - An electron, a proton, a deuteron (a neutron...Ch. 20 - Conceptual Example 20.1 shows that the...Ch. 20 - A free neutron is unstable and soon decays to...Ch. 20 - Where in Fig. 20.5 could you put a third charge so...Ch. 20 - Why should the test charge used to measure an...Ch. 20 - Equation 20.3 gives the electric field of a point...
Ch. 20 - Is the electric force on a charged particle always...Ch. 20 - Why does a dipole, which has no net charge,...Ch. 20 - The ring in Example 20.6 carries total charge Q,...Ch. 20 - A spherical balloon is initially uncharged. If you...Ch. 20 - Under what circumstances is the path of a charged...Ch. 20 - Why should there be a force between two dipoles,...Ch. 20 - Dipoles A and B are both located in the field of a...Ch. 20 - Suppose the electron and proton charges differed...Ch. 20 - A typical lightning flash delivers about 25 C of...Ch. 20 - Protons and neutrons are made from combinations of...Ch. 20 - Earth carries a net charge of about 5 105 C. How...Ch. 20 - As they fly, honeybees may acquire electric...Ch. 20 - The electron and proton in a hydrogen atom are...Ch. 20 - An electron at Earths surface experiences a...Ch. 20 - You break a piece of Styrofoam packing material,...Ch. 20 - A charge q is at the point x = 1 m, y = 0 m. Write...Ch. 20 - A proton is at the origin and an electron is at...Ch. 20 - An electron experiences an electric force of 0.61...Ch. 20 - Find the magnitude of the electric force on a...Ch. 20 - A 68-nC charge experiences a 150-mN force in a...Ch. 20 - The electric field inside a cell membrane is 8.0...Ch. 20 - A 1.0-C charge experiences a 10-N electric force...Ch. 20 - The electron in a hydrogen atom is 52.9 pm from...Ch. 20 - In Fig. 20.28, point P is midway between the two...Ch. 20 - The water molecules dipole moment is 6.2 1030Cm....Ch. 20 - The electric field 22 cm from a long wire carrying...Ch. 20 - Find the line charge density on a long wire if the...Ch. 20 - Find the magnitude of the electric field due to a...Ch. 20 - In his famous 1909 experiment that demonstrated...Ch. 20 - How strong an electric field is needed to...Ch. 20 - A proton moving to the right at 3.8l05m/s enters a...Ch. 20 - An electrostatic analyzer like that of Example...Ch. 20 - A 2-g ping-pong ball rubbed against a wool jacket...Ch. 20 - Two charges, one whose magnitude is twice as large...Ch. 20 - A proton is on the x-axis at x = 1.6 nm. An...Ch. 20 - A 9.5C charge is at x = 15cm, y = 5.0cm and a...Ch. 20 - A charge 3q is at the origin, and a charge 2q is...Ch. 20 - A negative charge q lies midway between two...Ch. 20 - In Fig. 20.29, take q1 = 68 C, q2 = 34 C, and q3 =...Ch. 20 - FIGURE 20.20 Problems 44 and 45 In Fig. 20.29,...Ch. 20 - DNA fragments introduced into an electrophoresis...Ch. 20 - A 65-C point charge is at the origin. Find the...Ch. 20 - A 1.0-C charge and a 2.0-C charge are 10 cm apart....Ch. 20 - A proton is at the origin and an ion is at x = 5.0...Ch. 20 - (a) Find an expression for the electric field on...Ch. 20 - A dipole lies on the y-axis and consists of an...Ch. 20 - Show that the field on the x-axis for the dipole...Ch. 20 - Youre 1.44 m from a charge distribution that is...Ch. 20 - Three identical charges q form an equilateral...Ch. 20 - Two identical small metal spheres initially carry...Ch. 20 - Two 38.0-C charges are attached to opposite ends...Ch. 20 - A thin rod lies on the x-axis between x = 0 and x...Ch. 20 - An electron is moving in a circular path around a...Ch. 20 - Find the line charge density on a long wire if a...Ch. 20 - A dipole with dipole moment 1.5 nCm is oriented at...Ch. 20 - You have a job examining patent applications....Ch. 20 - A 5.0-m strand of DNA carries charge +e per nm of...Ch. 20 - A molecule has its dipole moment aligned with a...Ch. 20 - Two identical dipoles, each of charge q and...Ch. 20 - A dipole with charges q and separation 2a is...Ch. 20 - An electron is at the origin, and an ion with...Ch. 20 - Youre taking physical chemistry, and your...Ch. 20 - The electric field on the axis of a uniformly...Ch. 20 - An electric quadrupole consists of two oppositely...Ch. 20 - You measure the electric field on a dipoles axis,...Ch. 20 - A straight wire 10 m long carries 25 C distributed...Ch. 20 - Figure 20.34 shows a thin rod of length L carrying...Ch. 20 - Figure 20.35 shows a thin, uniformly charged disk...Ch. 20 - Use the result of Problem 73 to show that the...Ch. 20 - Use the binomial theorem to show that, for x R,...Ch. 20 - A semicircular loop of radius a carries positive...Ch. 20 - In Example 20.2, find the position on the y-axis...Ch. 20 - A thin rod carries charge Q distributed uniformly...Ch. 20 - A thin rod extends along the x-axis from x = 0 to...Ch. 20 - A rod of length 2L lies on the x-axis, centered at...Ch. 20 - Youre working on the design of an ink-jet printer....Ch. 20 - BIO The human heart consists largely of elongated...Ch. 20 - At a given distance, far from the heart compared...Ch. 20 - The difference between Figs. 20.38a and 20.38b...Ch. 20 - At the instant shown in Fig. 20.38c, theres an...
Additional Science Textbook Solutions
Find more solutions based on key concepts
A generation is about one-third of a lifetime. Approximately how many generations have passed since the year 0 ...
University Physics Volume 1
A research balloon is prepared for launch by pumping into it 1.75 103 m3 of helium gas at 12C and 1.00 atm pre...
Essential University Physics: Volume 1 (3rd Edition)
47. A block hangs in equilibrium from a vertical spring. When a second identical block is added, the original ...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
The formula fT tells us that any object with any temperature T radiates energy at a wave frequency f. Is this s...
Conceptual Integrated Science
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
38. A 70 W electric blanket runs at 18 V.
a. What is the resistance of the wire in the blanket?
b. How much cur...
College Physics: A Strategic Approach (4th 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
- Two identical small conducting spheres are seperated by 0.60m.the spheres carry different amount of charge and each sphere experiences an attractive electric force of 10.8N. The total charge on the two spheres is -24C .the two spheres are now connected by a slender conducting wire , which is then removed.calculate the electric force in each spherearrow_forward= Q₁ = -0.10 μC is located at the origin. 2 +0.10 μC is located on the positive x axis at x = 1.0 m. Which of the following is true of the force on Q₁ due to Q₂? (a) It is attractive and directed in the +x direction. (b) It is attractive and directed in the -x direction. (c) It is repulsive and directed in the +x direction. (d) It is repulsive and directed in the -x direction.arrow_forwardThe electric field in an xy plane produced by a positively charged particle is 6.20(6.61 + 6.3) N/C at the point (4.1, 4.6) cm and 123 N/C at the point (3.8, 0) cm. What are the (a) x and (b) y coordinates of the particle? (c) What is the charge of the particle? (a) Number i Unitsarrow_forward
- · A proton with mass m = 1.67x10-27 kg and an initial velocity i, of magnitude 2x104 m/s in the positive x direction enters the region between two charged parallel plates through a small hole as seen in the figure. The magnitude of the electric fiend E between the plates is 5x104 N/C and in the negative x direction. A second hole is placed on the second plate opposite to the first one. (a) What should the maximum separation L between the plates be to allow the proton leave the plates from the second hole? (b)How long will it take the proton to do this? (c) If the separation were not L found in (a) but L/2 for the same proton speed, what would be the final velocity of the proton as it leaves the plates? (Ignore the gravity, assume that the holes do not alter the electric field. e = 1.6x10-19 C.) m Platearrow_forwardAn electron (mass m = 9.11 x 10-31 kg, charge q = 1.6 x 10-19 C) = 1.4 x 106 N/C) with horizontal speed v = %3D %3D enters a uniform electric field (E 3.4 x 106 m/s, as shown below. The magnitude of the acceleration (in unit of 1017m/s2) of the electron in the region of the electric field is: %3D a. 4.0 b. 0.25 С. 25 d. 2.5 e. Zeroarrow_forwardCalculate the magnitude of the electric field at a point which is 10 cm from a positive 23 μC charge. Use 1 Απερ = 9 × 10⁹ m/F. Answer: V/marrow_forward
- Q1 = -0.10 µC is located at the origin. Q2 = +0.10 µC is located on the positive x axis at x = 1.0 m. Which of the following is true of the force on Q, due to Q2? (a) It is attractive and directed in the +x direction. (b) It is attractive and directed in the -x direction. (c) It is repulsive and directed in the +x direction. (d) It is repulsive and directed in the –x direction.arrow_forwardThree point charges of +8×10−9 C, +32× 10−9 C and +24× 10−9 C are placed at the corners A, B and C of a square ABCD having each side 4 cm. Find the electric field intensity at the corner D. Assume that the medium is air. Ans:22.63 × 104 N/C61.32°arrow_forwardParticle A of charge 3.06 x 10-4 C is at the origin, particle B of charge -6.30 × 10-4 C is at (4.00 m, 0), and particle C of charge 1.01 x 10-4 C is at (0, 3.00 m). We wish to find the net electric force on C. (a) What is the x component of the electric force exerted by A on C? (b) What is the y component of the force exerted by A on C? (c) Find the magnitude of the force exerted by B on C. (d) Calculate the x component of the force exerted by B on C. (e) Calculate the y component of the force exerted by B on C. N (f) Sum the two x components from parts (a) and (d) to obtain the resultant x component of the electric force acting on C. (g) Similarly, find the y component of the resultant force vector acting on C. (h) Find the magnitude and direction of the resultant electric force acting on C. magnitude direction ° counterclockwise from the +x-axisarrow_forward
- Problem 1. An attractive force exists between two particles A and B with charges 2.062x10-4 C and -3.4518x10-4 C respectively. If particle B is positioned at coordinates (4cm,-2cm) from particle A (0,0), compute for the electrostatic force (both magnitude and direction) on the particle A due to particle B.arrow_forwardThree charges are placed along the x-axis: q1 = 3.00 µC at X1 = -20.0 cm, q2 = -5.00 µC at x2 = 10.0 cm, and q3 = 6.00 µC at x3 = 25.00 cm. Determine the magnitude of the electric field at the origin. O 4 69x106 N/C O 2 96x106 N/C O 6 04x106 N/C O 4.31x106 N/Carrow_forwardTwo charges are located on the x axis: q1 +8.5 μC at x₁ +5.6 cm, and 42 +8.5 µC at x₂ = -5.6 cm. Two other charges are located on the yaxis: 93 +2.3 μC at ys +4.6 cm, and q4-7.7 µC at ya +6.5 cm. Find (a) the magnitude and (b) the direction of the net electric field at the origin. (a) Number (b) The net electric field points Unitsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher: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
Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY