Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
2nd Edition
ISBN: 9780137443000
Author: Eugenia Etkina, Gorazd Planinsic
Publisher: PEARSON+
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 17, Problem 21CQ
You have a charged metal ball. How can you reduce its charge by half?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Your neighbor designs automobiles for a living. You are fascinated with her work. She is designing a new automobile and needs to determine how strong the front suspension should be. She knows of
your fascination with her work and your expertise in physics, so she asks you to determine how large the normal force on the front wheels of her design automobile could become under a hard stop,
ma
when the wheels are locked and the automobile is skidding on the road. She gives you the following information. The mass of the automobile is m₂ = 1.10 × 103 kg and it can carry five passengers of
average mass m = 80.0 kg. The front and rear wheels are separated by d = 4.45 m. The center of mass of the car carrying five passengers is dCM = 2.25 m behind the front wheels and
hcm = 0.630 m above the roadway. A typical coefficient of kinetic friction between tires and roadway is μk 0.840. (Caution: The braking automobile is not in an inertial reference frame. Enter the
magnitude of the force in N.)…
John is pushing his daughter Rachel in a wheelbarrow when it is stopped by a brick 8.00 cm high (see the figure below). The handles make an angle of 0 = 17.5° with the ground. Due to the weight of
Rachel and the wheelbarrow, a downward force of 403 N is exerted at the center of the wheel, which has a radius of 16.0 cm. Assume the brick remains fixed and does not slide along the ground. Also
assume the force applied by John is directed exactly toward the center of the wheel. (Choose the positive x-axis to be pointing to the right.)
(a) What force (in N) must John apply along the handles to just start the wheel over the brick?
(No Response) N
(b) What is the force (magnitude in kN and direction in degrees clockwise from the -x-axis) that the brick exerts on the wheel just as the wheel begins to lift over the brick?
magnitude (No Response) KN
direction
(No Response) ° clockwise from the -x-axis
An automobile tire is shown in the figure below. The tire is made of rubber with a uniform density of 1.10 × 103 kg/m³. The tire can be modeled as consisting of two flat sidewalls and a tread region. Each of the sidewalls has an inner radius of 16.5 cm and an outer radius of 30.5 cm as shown, and a uniform
thickness of 0.600 cm. The tread region can be approximated as having a uniform thickness of 2.50 cm (that is, its inner radius is 30.5 cm and outer radius is 33.0 cm as shown) and a width of 19.2 cm. What is the moment of inertia (in kg. m²) of the tire about an axis perpendicular to the page through its
center?
2.18
x
Sidewall
33.0 cm
30.5 cm
16.5 cm
Tread
Chapter 17 Solutions
Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
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
15. A good scientific hypothesis is based on existing evidence and leads to testable predictions. What hypothes...
Campbell Biology: Concepts & Connections (9th Edition)
Two culture media were inoculated with four different bacteria. After incubation, the following results were ob...
Microbiology: An Introduction
Of the following statements about protected areas that have been established to preserve biodiversity, which on...
Campbell Biology (11th Edition)
Which of the following factors would tend to increase membrane fluidity? A. a greater proportion of unsaturated...
Campbell Biology in Focus (2nd Edition)
30. A switch that connects a battery to a 10 ? F capacitor is closed. Several seconds later you find that the c...
College Physics: A Strategic Approach (3rd Edition)
37. Galactosemia is an autosomal recessive disorder caused by the inability to metabolize galactose, a componen...
Genetic Analysis: An Integrated Approach (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
- A person on horseback is on a drawbridge which is at an angle = 20.0° above the horizontal, as shown in the figure. The center of mass of the person-horse system is d = 1.35 m from the end of the bridge. The bridge is l = 7.00 m long and has a mass of 2,300 kg. A cable is attached to the bridge 5.00 m from the frictionless hinge and to a point on the wall h = 12.0 m above the bridge. The mass of person plus horse is 1,100 kg. Assume the bridge is uniform. Suddenly (and most unfortunately for the horse and rider), the ledge where the bridge usually rests breaks off, and at the same moment the cable snaps and the bridge swings down until it hits the wall. ÚI MAJI A TLA MAJA AUTA (a) Find the angular acceleration (magnitude, in rad/s²) of the bridge once it starts to move. 2.22 Use the rotational analogue of Newton's second law. The drawbridge can be modeled as a rod, with rotation axis about one end. rad/s² (b) How long (in s) does the horse and rider stay in contact with the bridge…arrow_forwardTwo long, parallel wires carry currents of I₁ = 2.70 A and I2 = 4.85 A in the directions indicated in the figure below, where d = 22.0 cm. (Take the positive x direction to be to the right.) 12 (a) Find the magnitude and direction of the magnetic field at a point midway between the wires. magnitude direction 3.91 270 μπ ⚫ counterclockwise from the +x axis (b) Find the magnitude and direction of the magnetic field at point P, located d = 22.0 cm above the wire carrying the 4.85-A current. magnitude direction Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. μT The response you submitted has the wrong sign.° counterclockwise from the +x axisarrow_forwardO Macmillan Learning The mass of a particular eagle is twice that of a hunted pigeon. Suppose the pigeon is flying north at Vi2 = 16.1 m/s when the eagle swoops down, grabs the pigeon, and flies off. At the instant right before the attack, the eagle is flying toward the pigeon at an angle 0 = 64.3° below the horizontal and a speed of Vi,1 = 37.9 m/s. What is the speed of of the eagle immediately after it catches its prey? What is the magnitude & of the angle, measured from horizontal, at which the eagle is flying immediately after the strike? Uf = II x10 TOOLS Vi.1 Vi,2 m/sarrow_forward
- What is the equivalent resistance if you connect a 1.7 Ohm, a 9.3 Ohm, and a 22 Ohm resistor in series? (Give your answer as the number of Ohms.)arrow_forwardThree wires meet at a junction. One wire carries a current of 5.2 Amps into the junction, and a second wire carries a current of 3.7 Amps out of the junction. What is the current in the third wire? Give your answer as the number of Amps, and give a positive number if the current in that wire flows out of the junction, or a negative number if the current in that wire flows into the junction.arrow_forwardWhat is the equivalent resistance if you connect a 4.5 Ohm, a 6.8 Ohm, and a 15 Ohm resistor in parallel? (Give your answer as the number of Ohms.)arrow_forward
- Suppose a heart defibrillator passes 10.5 Amps of current through a patient's torso for 5.0 x 10-3 seconds in order to restore a regular heartbeat. The voltage across the defibrillator is 9800 volts for the entire time that current is flowing. If 7.25 kg of body tissue is involved, with a specific heat of 3500 J/(kg°C), then what is the resulting temperature increase of the person's torso? (Give your answer as the number of degrees C.)arrow_forwardThe figure below is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, an outer conductor, and another rubber layer. In a particular application, the current in the inner conductor is I₁ = 1.04 A out of the page and the current in the outer conductor is I2 = 2.90 A into the page. Assuming the distance d = 1.00 mm, answer the following. 4 12 (a) Determine the magnitude and direction of the magnetic field at point a. magnitude 208 direction upward (b) Determine the magnitude and direction of the magnetic field at point b. magnitude direction 238 You can approach this problem by finding the field produced by current I₁ and the field produced by I2 and then adding them vectorially. μT downwardarrow_forwardShoto, from My Hero Academia, has a power (or a “quirk”) that allows him to make large amounts of ice from nothing. Let us say that due to a fire a 361 kg steel beam is heated to 943.˚C and Shoto creates 390. kg of ice at 0.00˚C around it to cool it down. What is the final temperature of the system after the ice melts and it reaches thermal equilibrium? The specific heat of steel is 502 J/kg˚C. The specific heat of water is 4186 J/kg˚C. The latent heat of fusion for ice is 3.33⋅10^5 J/kg.arrow_forward
- A 25.0 cm long organ pipe is filled with air and is open at one end and closed at the other. The speed of sound in air at 0°C is 331 m/s. What is the frequency of the fourth mode of vibration? Multiple Choice О 1,550 Hz О 1,750 Hz О 2,320 Hz О 2,720 Hz О 3,170 Hzarrow_forward23.4 g of coffee beans at room temperature (18.6 °C) is mixed into 316 g of water at 96.8 °C in an effort to make coffee. The entire system is poured in a 363 g ceramic mug. Assume the mug is initally also at room temperature (18.6 °C). What is the final temperature of the mixture? The specific heat of ground coffee beans is 1670 J/kg˚C, the specific heat of water is 4186 J/kg˚C, and the specific heat of the mug is 850. J/kg˚C.arrow_forwardSnoop Dogg, in an effort to get laid back (with his mind on his money and his money on his mind) pours himself a gin and juice. He mixes 0.124 kg (about 3 shots) of gin with 0.576 kg (about a pint) of orange juice. The gin starts at 20.0˚C, room temperature. The juice is refrigerated and starts at 2.89 ˚C. What is the final temperature after mixing of the gin and juice? The specific heat of gin is 3460 J/kg˚C and the specific heat of orange juice is 3730 J/kg˚C.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 Learning
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
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
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
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, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY