College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 17, Problem 22CQ
You have a foam rod rubbed with felt and a small aluminum foil ball attached to a thread. Describe what happens when you slowly approach the ball with the rod and then touch the ball. Explain why this happens.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Glass and Silk. A glass rod (-) is rubbed on silk (+). Two balls A and B are suspended
by insulating threads. The observations are as follows:
I. Both A and B are attracted to the glass rod.
II. A is attracted to B.
III. B is repelled by the silk.
Which of the following is TRUE regarding the system?
A. A: (-)
B. A: (+)
C. A: neutral
D. B: neutral
Please help me with my hw. Tysm❤️
Instruction: Explain all answers in 5-6 sentences.
What generalization can you make when Balloon 1 is brought near the Balloon 2?
What can you conclude if the balloon is rubbed to another object, hair, and comb near the bits of paper or tissue?
. In a common physics demonstration, a rubber rod is first rubbed
vigorously on silk or fur. It is then brought close to a small Styrofoam™ ball, which it attracts. If you then touch the ball with the rod,
it suddenly repels the ball. Why does it first attract the ball, and why
does it then repel the same ball?
Chapter 17 Solutions
College Physics
Ch. 17 - Review Question 17.1 To decide whether an object...Ch. 17 - Review Question 17.2 The model of charging by...Ch. 17 - Review Question 17.3 One cannot charge a held...Ch. 17 - Review Question 17.4 Two charged objects (1 and 2)...Ch. 17 - Review Question 17.5 How can we reduce the...Ch. 17 - Review Question 17.6
How would our reasoning in...Ch. 17 - Review Question 17.7 In a Van de Graaff generator,...Ch. 17 - Which of the following occurs when two objects are...Ch. 17 - 2. With which statements do you disagree?
a. If...Ch. 17 - 3. Which explanation agrees with the contemporary...
Ch. 17 - When an object gets charged by rubbing, where does...Ch. 17 - Choose all of the quantities that are constant in...Ch. 17 - Identically charged point-like objects A and B are...Ch. 17 - When separated by distance d, identically charged...Ch. 17 - Balloon A has charge q, and identical mass balloon...Ch. 17 - Imagine that two charged objects are the system of...Ch. 17 - Two objects with charges + q and -2q are separated...Ch. 17 - Charged point-like objects A and B are separated...Ch. 17 - 12. If you move a negatively charged balloon...Ch. 17 - 13. Describe the differences between the electric...Ch. 17 - Prob. 14CQCh. 17 - At one time it was thought that eclectic charge...Ch. 17 - 16. What experiments can you do to show that there...Ch. 17 - An object becomes positively charged due to...Ch. 17 - List everything that you know about electric...Ch. 17 - 19. What experimental evidence supports the idea...Ch. 17 - 20. You have an aluminum pie pan with pieces of...Ch. 17 - You have a charged metal ball. How can you reduce...Ch. 17 - 22. You have a foam rod rubbed with felt and a...Ch. 17 - A positively charged metal ball A is placed near...Ch. 17 - 24. Show that if the charge on B in the previous...Ch. 17 - 25. Two metal balls of the same radius are placed...Ch. 17 - 26. Describe the experiments that were first used...Ch. 17 - 27. The electrical force that one electric charge...Ch. 17 - 28. Why isn’t Coulomb's law valid for large...Ch. 17 - 29. How is electric potential energy similar to...Ch. 17 - BIO Ventricular defibrillation During ventricular...Ch. 17 - 2. * You rub two 2.0-g balloons with a wool...Ch. 17 - * Two balloons of different mass hang from strings...Ch. 17 - * Lightning A cloud has a large positive charge....Ch. 17 - 5. Sodium chloride (table salt) consists of sodium...Ch. 17 - * EST (a) Earth has an excess of 6105 electrons on...Ch. 17 - 7. Determine the electrical force that two protons...Ch. 17 - * Determine the number of electrons that must be...Ch. 17 - BIO Ions on cell walls The membrane of a body cell...Ch. 17 - * Hydrogen atom in a simplified model of a...Ch. 17 - * Three 100 nC charged objects are equally spaced...Ch. 17 - ** Tow objects with charges q and 4q are separated...Ch. 17 - * Salt crystal Four ions (Na+,Cl-,Na+,andCl-) in a...Ch. 17 - * A+106C charged object and a+2106C charged object...Ch. 17 - 15. **BIO Bee pollination Bees acquire an electric...Ch. 17 - 16. * A triangle with equal sides of length 10 cm...Ch. 17 - 17. You have a small metal sphere fixed on an...Ch. 17 - 18. * After the experiment in Problem 17.17, you...Ch. 17 - 20. (a) Determine the change in electric potential...Ch. 17 - You have a system of two positively charged...Ch. 17 - You have a system of two negatively charged...Ch. 17 - 23. Repeat (a)-(c) of Problem 17.22 for a system...Ch. 17 - The metal sphere on the top of a Van de Graaff...Ch. 17 - * EST An electron is 0.10 cm from an object with...Ch. 17 - * (a) An object with charge q4=+3.010-9C is moved...Ch. 17 - 27. * An object with charge is moved from...Ch. 17 - +8nCandq2=4nC are placed at marks...Ch. 17 - 29. * Two small objects with charges + Q and -Q...Ch. 17 - 30. * A stationary block has a charge of . A...Ch. 17 - Figure P17.31 shows four different configurations...Ch. 17 - * Evaluate the solution Metal sphere 1 has charge...Ch. 17 - 37. * Construct separate force diagrams for each...Ch. 17 - 38. “ The six objects shown in Figure P17.38 have...Ch. 17 - * A small metal ball with positive charge + q and...Ch. 17 - 40. * Four objects each with charge are located...Ch. 17 - 41. * Two 5.0-g aluminum foil balls hang from...Ch. 17 - 42. * A 6.0-g ball with charge hangs from a...Ch. 17 - * A 0.40-kg cart with charge +4.010-8C starts at...Ch. 17 - A dust particle has an excess charge of 4106...Ch. 17 - Electric accelerator A micro-transporter moves...Ch. 17 - * You are holding at rest a small sphere A with...Ch. 17 - * A Van de Graaff generator is placed in rarefied...Ch. 17 - 48. * Two protons each of mass and charge +e are...Ch. 17 - 49. * Two protons, initially separated by a very...Ch. 17 - * An alpha particle consists of two protons and...Ch. 17 - * Determine the speed that the proton shown in...Ch. 17 - 52. ** Suppose that Earth and the Moon initially...Ch. 17 - 53. * BIO Calcium ion synapse transfer Children...Ch. 17 - 54. A small ball D has a charge of and cannot...Ch. 17 - 55. *Two small balls A and B with equal charges +...Ch. 17 - Static cling You pull your domes from the dryer...Ch. 17 - Static cling You pull your domes from the dryer...Ch. 17 - Static cling You pull your domes from the dryer...Ch. 17 - Static cling You pull your domes from the dryer...Ch. 17 - Static cling You pull your domes from the dryer...Ch. 17 - Static cling You pull your domes from the dryer...Ch. 17 - Static cling You pull your clothes from the dryer...Ch. 17 - Electrostatic exploration Geologists sometimes...Ch. 17 - Electrostatic exploration Geologists sometimes...Ch. 17 - Electrostatic exploration Geologists sometimes...Ch. 17 - Electrostatic exploration Geologists sometimes...Ch. 17 - Electrostatic exploration Geologists sometimes...Ch. 17 - Electrostatic exploration Geologists sometimes...
Additional Science Textbook Solutions
Find more solutions based on key concepts
6. Show how it is possible for neutral objects to attract each other electrically.
College Physics (10th Edition)
9.58 • CALC A roller in a printing press turns through an angle ?(t) given by ?(t) = ?t2 – ?t3, where ? = 3.20 ...
University Physics (14th Edition)
The cause for the heating of the space shuttle.
College Physics: A Strategic Approach (3rd Edition)
An object that is thrown straight up falls back to Earth. This is one-dimensional motion. (a) When is its veloc...
College Physics
Choose the best answer to each of the following. Explain your reasoning. Which moon shows evidence of rainfall ...
Cosmic Perspective Fundamentals
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)
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
- Your roommate is having trouble understanding why solids form. He asks, Why would atoms bond into solids rather than just floating freely with respect to each other? To help him understand at least one type of bonding in solids, you decide to embark on an energy explanation. You show him a drawing of a primitive cell of a sodium chloride crystal, NaCl, or simple table salt. The drawing is shown in Figure P24.10, where the orange spheres are Na+ ions and the blue spheres are Cl ions. Each ion has a charge of magnitude equal to the elementary charge e. The ions lie on the comers of a cube of side d. You explain to your roommate that the electrical potential energy is defined as zero when all eight charges are infinitely far apart from each other. Then you bring them together to form the crystal structure shown. (a) Evaluate the electric potential energy of the crystal as shown and (b) show that it is energetically favorable for such crystals to form. Figure P24.10arrow_forward1. An electron moves along the x direction with a velocity of 1.2 x 107 m/s into an electric field -2800 N/C Ĵ. Determine how far in the y direction the electron is deflected in the time it takes to move 33 mm in the x direction if... a) The electric field is a constant -2800 N/C Ĵ. b) The electric field varies as -2800 sin(w t) where w = 109 s¹ and the particle enters the field at t = 0. Answers: a) 1.5 mm b) Forthcomingarrow_forwardProblem 223. Two small metal balls of mass m 0.1 g are suspended at the same point by insulating threads of length 1= = 30 cm. One of the balls is loaded with twice as much electric charge as the other. Pushing the balls towards each other by insulating materials, we move them to a position where hoth threads make an angle of a = 20° with the vertical, and the threads remain in a common vertical plane. After releasing the two balls from this position at the same time, the angle between the two 8 20 m m threads reaches the largest value of 3=84°. Determine the charge of the balls.arrow_forward
- There are two conductive metal balls, each with a mass of m, and a radius of r₁ - 8 cm and ra = 2 cm as seen in the figure. The metal balls are initially held and released. There is an electric field in the vicinity that is directed from a ball of large radius to a ball of small radius. The distance Decoupled between the centers of the balls before allowing them to move is Ro = 15 cm. At first, the large metal ball is charged by q, and the small one has no charge. When we allow the system to move freely, the metal balls will collide repeatedly, and the collisions will be head-on and perfectly elastic. At each collision the interaction leads to a uniform charge distribution on the balls throughout the whole process. Calculate the total distance taken from the first collision until the (n + 1)th collision where n> 1 in terms of n² cm. Answer: +9. 11 1513 Ro 12arrow_forwardIn an inkjet printer, letters and images are created by squirting drops of ink horizontally at a sheet of paper from a rapidly moving nozzle. The pattern on the paper is controlled by an electrostatic valve that determines at each nozzle position whether ink is squirted onto the paper or not. Figure + 9 Do- < 1 of 1 The ink drops have a mass m = 1.00×10-11 kg each and leave the nozzle and travel horizontally toward the paper at velocity v = 25.0 m/s. The drops pass through a charging unit that gives each drop a positive charge q by causing it to lose some electrons. The drops then pass between parallel deflecting plates of length Dº = 1.85 cm, where there is a uniform vertical electric field with magnitude E = 7.85×104 N/C . (Figure 1) Part A If a drop is to be deflected a distance d = 0.350 mm by the time it reaches the end of the deflection plate, what magnitude of charge q must be given to the drop? Assume that the density of the ink drop is 1000 kg/m³, and ignore the effects of…arrow_forwardFind the electric field at the origin due to three charges: q1 = 1 nC is at (x, y) = (-3, 0)m q1 = 1 nC is at (x, y) = (4, 0)m q1 = -8 nC is at (x, y) = (12,0)m Assume a precision of 3 significant figures for all parameters. Give your answer in N/C. A positive answer would indicate an electric field in the positive 'x' direction, and a negative answer would indicate an electric field in the negative 'x' directionarrow_forward
- In preparation for an experiment that you will do in your introductory nuclear physics lab, you are shown the inside of a Geiger tube. You measure the radius and the length of the central wire of the Geiger tube to be 2.0 x 10-4 m and 1.2 x 10-1 m, respectively. The outer surface of the tube is a conducting cylindrical shell that has an inner radius of 1.5 x 10-2 m. The shell is coaxial with the wire and has the same length (0.12 m). (a) Calculate the capacitance of your tube, assuming that the gas in the tube has a dielectric constant of 1.00. F (b) Calculate the value of the linear charge density on the wire when the potential difference between the wire and shell is of 1.20 kV. C/marrow_forwardA particle (mass = 4.0 g, charge = 91 mC) moves along the x-axis in a region of space %3D where the electric field is uniform and is given by Ex = 2.5 N/C If the velocity of the particle at t = 0 is given by vx = 80 m/s, what is the velocity of the particle at t = 2.0 s? %3D Select one: A. -90.62 m/s B. -33.75 m/s C. -375.00 m/s D. -158.88 m/sarrow_forwardA proton is initially at rest. After some time, a uniform electric field is turned on and the proton accelerates. The magnitude of the electric field is 1.18 x 10 N/C (a) What is the speed of the proton after it has traveled 7.00 cm? m/s (b) What is the speed of the proton after it has traveled 70.0 cm? m/sarrow_forward
- An electron, initially at rest, is placed in an external electric field of 5 x 10 5 N/C directed to the left. a. Determine the magnitude and direction of the force on the electron due to the electric field. b. Determine the magnitude and direction of acceleration of the electron if the mass of the electron is 9.11 x 10-31 kg.arrow_forwardYou are an astronaut, living for a long time interval in the International Space Station (ISS). During your off-duty hours, you have run out of books to read and video games to play. So, your mind wanders to your hobby of music. The last book you read discussed Gauss's law, and you get an inspiration. You plan to attach two nonconducting spheres of radius r = 1.70 cm together using a light insulating string of length L and linear mass density u = 7.00 x 10-3 kg/m, with the string attached at the surface of each sphere. Then, using the electrical system on the ISS, you will be able to electrify each sphere to a charge of Q = 75.0 µc, uniformly spread over the surface of the sphere. The combination will then be allowed to float freely in the ISS. The spheres will repel, creating a tension in the string. When you pluck the string, you wish it to play a perfect middle C, at 262 Hz. Determine the length of the string (in cm) that you need. (Assume the frequency of 262 Hz is the fundamental…arrow_forwardTwo plane parallel plates A and B situated in a vacuum at a distance of 3 cm. An electron starts from rest at the negative plate and reaches the half-way between plates after 4.8 x 10-9 s. Calculate (i) the impact velocity. (ii) the time the electron takes to reach a speed of 7.5 x 106 m/s. (iii) the position of the electron after 3.6 x 10-9 s.arrow_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 LearningPhysics 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: 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
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
Magnets and Magnetic Fields; Author: Professor Dave explains;https://www.youtube.com/watch?v=IgtIdttfGVw;License: Standard YouTube License, CC-BY