Concept explainers
Suppose the particle travels from point W to point Y along the path WXZY as shown
1. Compare the work done by the electric field when the particle travels from point W to point X to that done when the particle travels from point Z to point Y. Explain
What is the total work done on the particle by the electric field as it moves along the path WXZY?
2. Suppose the particle travels from W to Y along the arc shown. Is the work done on the particle by the electric field positive, negative, or zero? Explain using force and displacement vectors.
3. Suppose the particle travels along the straight path WY. Is the work done on the particle by the electric field positive, negative, or Zero? Explain using force and displacement vectors. (Hint: Compare the work done along the first half of the path to the work done along the second half.)
Learn your wayIncludes step-by-step video
Chapter 5 Solutions
Tutorials in Introductory Physics
Additional Science Textbook Solutions
Physics for Scientists and Engineers with Modern Physics
College Physics
Cosmic Perspective Fundamentals
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Physics: Principles with Applications
Physics (5th Edition)
- Someone drops a 50 — g pebble off of a docked cruise ship, 70.0 m from the water line. A person on a dock 3.0 m from the water line holds out a net to catch the pebble. (a) How much work is done on the pebble by gravity during the drop? (b) What is the change in the gravitational potential energy during the drop? If the gravitational potential energy is zero at the water line, what is the gravitational potential energy (c) when the pebble is dropped? (d) When it reaches the net? What if the gravitational potential energy was 30.0 Joules at water level? (e) Find the answers to the same questions in (c) and (d).arrow_forwardA point charge qi is held stationary at the origin. A second charge q2 is placed at point a, and the electric potential energy of the pair of charges is +5.4 x 10-8 J. When the second charge is moved to point b, the electric force on the charge does -1.9 x 10-8 J of work. Part A What is the electric potential energy of the pair of charges when the second charge is at point b? Express your answer in joules. Jarrow_forwardA 1.5kg book is sliding along a horizontal surface. At point A, it is moving at 3.21m/s, and atpoint B it has slowed to 1.25m/s. a. How much work was done on the book between A and B?b. Suppose the book continues its motion and -0.750 Joules of work is done on the book frompoint B to C. How fast is it moving at point C?arrow_forward
- Part A A small particle has charge -6.50 uC and mass 1.50x10 kg. It moves from point A, where the electric potential is VA = 230 V, to point B, where the electric potential Vg = 580 V is greater than the potential at point A. The electric force is the only force acting on the particle. The particle has a speed of 5.40 m/s at point A. What is its speed at point B? Express your answer in meters per second. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Electric torce and electric potential. m/s Submit Request Answer Part B Is it moving faster or slower at B than at A? Faster Slower Submit Requeet Anawer Provisde Eesedbackarrow_forwardFigure 1 of 1 +) Part A What is the electric potential at points A, B, and C in (Figure 1)? Suppose that q = 2.0 nC, rị = 1.1 cm, and r2 = 2.2 cm. Enter your answers numerically separated by commas. Hνα ΑΣφ VA, VB. Vc = V Part B What is the potential difference AVAB =VB – VA ? Express your answer with the appropriate units. Part C What is the potential difference AVCB = VB – Vc? Express your answer with the appropriate units.arrow_forwardi%Vo l. * O A E:10 Aa for the figure shown below find How much the potential Energy or the work Wa-b which is needed to move the test charge qo from point a to b along the radial line if :qo= 2nc, q= 5nc , ra= 10 cm, rb= 20, And from the value of the work find How much the Potential difference at q? Test charge qo moves from a to b along radial line from q إرسال إلى ( الأصدقاء المقربون قصتكarrow_forward
- please answer G and H. previous questions are above to help:)arrow_forwardProblem A moving electron has a Kinetic Energy Kq. After a net amount of work is done on it, the electron is moving one-quarter as fast in the opposite direction. What is the work done Win terms of Kq? Solution To solve for the work done, first we must determine what is the final kinetic energy of the electron. By concept, we know that K1=(1/2)mv21 K2=(1/2)mv2 But it was mentioned that: v2=( so, K2 in terms of vq is K2=( )mv²1 Substituting the expression for K1 results to K2=( K1 Since work done is W=AK=K -K Evaluating results to W=( K1arrow_forwardA silver sphere of diameter 20cm carries a total charge of - 3uC uniformly distributed over its surface. 1. What is the magnitude of the electric field due to this sphere at a point 5cm outside the sphere's surface? 2. What is the direction of the electric field at point 5cm outside the sphere's surface, towards the sphere, away the sphere, going up, going down, or none? 3. What is the magnitude of the electric field due to this sphere at a point 5cm from the center of the sphere? 4. What is the direction of the electric field at point 5cm from the center of the sphere, towards the sphere, away the sphere, going up, going down, or none?arrow_forward
- rt A An electron moves along the trajectory of (Figure 1) from i to f. es the electric potential energy increase, decrease, or stay the same? Explain. tch the words in the left column to the appropriate blanks in the sentences on the right. Reset -2 so its absolute value positive The electric potential energy of the charges is proportional to T with increase of r As the charges have opposite signs, the potential energy of the charges has as r increases. negative sign. Thus, the potential energy decreases decreases Figure く 1of 1 positive negative increases remains the same f Submit Previous Answers Request Answer P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. Terms of Use Privacy Policy Permissions | Contact Us | 12:33 PM Ps 59°F Cloudy ^ 504 4/2/2022 IIarrow_forwardPart A How much work does the electric field do in moving a proton from a point with a potential of +175 V to a point where it is -75 V ? Express your answer in joules. Express your answer using two significant figures. ? J Wba Submit Request Answer Part B Express your answer in electron volts. Express your answer using two significant figures. ? eV Wbaarrow_forward(Figure 1) is a graph of E₁. The potential at the origin is -50 V. Figure Ex (V/m) 200- 100 0 0 1 2 3 1 of 1 -x (m) Part A What is the potential at x = 3.0 m? Express your answer to two significant figures and include the appropriate units. ▸ View Available Hint(s) V(3.0 m) = Submit Provide Feedback μÅ Value B Units ? Next >arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning