Conceptual Physics (12th Edition)
12th Edition
ISBN: 9780321909107
Author: Paul G. Hewitt
Publisher: PEARSON
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Chapter 22, Problem 31RCQ
To determine
Friction and discharging with an experiment by scuffing through a carpet with a friend who stand at the far end of a carpeted room.
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A positively charged disk has a uniform charge per unit area σ.
dq
R
P
x
The total electric field at P is given by the following.
Ek [2 -
x
(R² + x2) 1/2
Sketch the electric field lines in a plane perpendicular to the plane of the disk passing through its center.
Consider a closed triangular box resting within a horizontal electric field of magnitude E = 8.02 104 N/C as shown in the figure below.
A closed right triangular box with its vertical side on the left and downward slope on the right rests within a horizontal electric field vector E that points from left to right. The box has a height of 10.0 cm and a depth of 30.0 cm. The downward slope of the box makes an angle of 60 degrees with the vertical.
(a) Calculate the electric flux through the vertical rectangular surface of the box. kN · m2/C(b) Calculate the electric flux through the slanted surface of the box. kN · m2/C(c) Calculate the electric flux through the entire surface of the box. kN · m2/C
The figure below shows, at left, a solid disk of radius R = 0.600 m and mass 75.0 kg.
Tu
Mounted directly to it and coaxial with it is a pulley with a much smaller mass and a radius of r = 0.230 m. The disk and pulley assembly are on a frictionless axle. A belt is wrapped around the pulley and connected to an electric motor as shown on the right. The turning motor gives the disk
and pulley a clockwise angular acceleration of 1.67 rad/s². The tension T in the upper (taut) segment of the belt is 145 N.
(a) What is the tension (in N) in the lower (slack) segment of the belt?
N
(b) What If? You replace the belt with a different one (one slightly longer and looser, but still tight enough that it does not sag). You again turn on the motor so that the disk accelerates clockwise. The upper segment of the belt once again has a tension of 145 N, but now the tension in
the lower belt is exactly zero. What is the magnitude of the angular acceleration (in rad/s²)?
rad/s²
Chapter 22 Solutions
Conceptual Physics (12th Edition)
Ch. 22 - Prob. 1RCQCh. 22 - Prob. 2RCQCh. 22 - Prob. 3RCQCh. 22 - Prob. 4RCQCh. 22 - Prob. 5RCQCh. 22 - Prob. 6RCQCh. 22 - Prob. 7RCQCh. 22 - Prob. 8RCQCh. 22 - Prob. 9RCQCh. 22 - Prob. 10RCQ
Ch. 22 - Prob. 11RCQCh. 22 - Prob. 12RCQCh. 22 - Prob. 13RCQCh. 22 - Prob. 14RCQCh. 22 - Prob. 15RCQCh. 22 - Prob. 16RCQCh. 22 - Prob. 17RCQCh. 22 - Prob. 18RCQCh. 22 - Prob. 19RCQCh. 22 - Prob. 20RCQCh. 22 - Prob. 21RCQCh. 22 - Prob. 22RCQCh. 22 - Prob. 23RCQCh. 22 - Prob. 24RCQCh. 22 - Prob. 25RCQCh. 22 - Prob. 26RCQCh. 22 - Prob. 27RCQCh. 22 - Prob. 28RCQCh. 22 - Prob. 29RCQCh. 22 - Prob. 30RCQCh. 22 - Prob. 31RCQCh. 22 - 32. Write a letter to Grandpa and tell him why...Ch. 22 - Prob. 33RCQCh. 22 - Coulomb’s...Ch. 22 - 35. Solve for the force in the preceding problem...Ch. 22 - 36. Two point charges are seperated by 6 cm. The...Ch. 22 - Prob. 37RCQCh. 22 - 38. Two pellets, each with a charge of 1...Ch. 22 - 39. Electronic types neglect the force of gravity...Ch. 22 - 40. Atomic physicists ignore the effect of gravity...Ch. 22 - Prob. 41RCQCh. 22 - The potential difference between a storm cloud and...Ch. 22 - Prob. 43RCQCh. 22 - 44. Find the voltage change when (a) an electric...Ch. 22 - 45. In 1909 Robert Millikan was the first to find...Ch. 22 - 46. The three pairs of metal same-size spheres...Ch. 22 - 47. Shown are three separate pairs of point...Ch. 22 - Prob. 48RCQCh. 22 - Prob. 49RCQCh. 22 - Why aren’t objects with vast numbers of electrons...Ch. 22 - Prob. 51RCQCh. 22 - Prob. 52RCQCh. 22 - Prob. 53RCQCh. 22 - 54. At some automobile toll booths a thin metal...Ch. 22 - 55. Why are the tires for trucks carrying gasoline...Ch. 22 - 56. An electroscope is a simple device consisting...Ch. 22 - Prob. 57RCQCh. 22 - Is it necessary for a charged body actually to...Ch. 22 - Prob. 59RCQCh. 22 - 60. How can you charge an object negatively with...Ch. 22 - Prob. 61RCQCh. 22 - Prob. 62RCQCh. 22 - 63. The 50,000 billion billion () freely moving...Ch. 22 - Prob. 64RCQCh. 22 - Prob. 65RCQCh. 22 - 66. When you double the distance between a pair of...Ch. 22 - Prob. 67RCQCh. 22 - 68. When you double the charge on both particles...Ch. 22 - Prob. 69RCQCh. 22 - 70. How do electric field lines indicate the...Ch. 22 - Prob. 71RCQCh. 22 - 72. Suppose that the strength of the electric...Ch. 22 - Prob. 73RCQCh. 22 - 74. Measurements show that there is an electrical...Ch. 22 - Prob. 75RCQCh. 22 - Prob. 76RCQCh. 22 - Prob. 77RCQCh. 22 - Prob. 78RCQCh. 22 - Prob. 79RCQCh. 22 - 80. How can a charged atom (an ion) attract a...Ch. 22 - 81. If you place a free electron and a free proton...Ch. 22 - 82. How will the accelerations of the proton and...Ch. 22 - 83. How will the directions of travel compare for...Ch. 22 - Prob. 84RCQCh. 22 - Prob. 85RCQCh. 22 - Prob. 86RCQCh. 22 - Prob. 87RCQCh. 22 - Prob. 88RCQCh. 22 - 89. If you expend 10 J of work to push a 1-C...Ch. 22 - 90. When released what is the kinetic energy of...Ch. 22 - Prob. 91RCQCh. 22 - 92. Why is it safe to remain inside a car during a...Ch. 22 - Prob. 93RCQCh. 22 - 94. In order to store more energy in a...Ch. 22 - Prob. 95RCQCh. 22 - 96. An electron volt (eV) is a unit of energy....Ch. 22 - Prob. 97RCQCh. 22 - Would you feel any electrical effects if you were...Ch. 22 - Prob. 99RCQCh. 22 - Prob. 100RCQCh. 22 - Prob. 101RCQCh. 22 - 102. Strictly speaking when an object acquires a...Ch. 22 - Strictly speaking, will a penny be slightly more...Ch. 22 - Prob. 104RCQCh. 22 - Prob. 105RCQCh. 22 - If you are caught outdoors in a thunderstorm, why...Ch. 22 - 107. Two pieces of plastic, a full ring and a half...Ch. 22 - Prob. 108RCQ
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