COLLEGE PHYSICS-ACHIEVE AC (1-TERM)
3rd Edition
ISBN: 9781319453916
Author: Freedman
Publisher: MAC HIGHER
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Chapter 5, Problem 5QAP
To determine
(a)
The effect of weight of the book when reduce the applying force to the book in the same spot on the wall.
Expert Solution
Answer to Problem 5QAP
The weight of the book is not changed.
Explanation of Solution
Introduction:
The book is pressed against on the wall. When we reduce the applying force to the book, the book remains in the same spot on the wall.
So the magnitude remains constant. Therefore weight stays the same.
Conclusion:
The weight stays the same.
To determine
(b)
The effect of the normal force of the wall on the book when reduce the applying force to the book in the same spot on the wall.
Expert Solution
Answer to Problem 5QAP
The normal force of the wall on the book decreases.
Explanation of Solution
Introduction:
The book is pressed against on the wall. When we reduce the applying force to the book, the book remains in the same spot on the wall.
When applied force is reduced the normal force decreases.
Conclusion:
The normal force of the wall on the book decreases.
To determine
(c)
The effect of the frictional force of the wall on the book when reduce the applying force to the book in the same spot on the wall.
Expert Solution
Answer to Problem 5QAP
The frictional force of the wall on the book is not changed.
Explanation of Solution
Introduction:
The book is pressed against on the wall. When we reduce the applying force to the book, the book remains in the same spot on the wall.
So the weight of the book is constant. Therefore the frictional force of the wall on the book stays same.
Conclusion:
The frictional force of the wall on the book stays same.
To determine
(d)
The effect of the maximum static frictional force of the wall on the book when reduce the applying force to the book in the same spot on the wall.
Expert Solution
Answer to Problem 5QAP
The maximum static frictional force of the wall on the book deceases.
Explanation of Solution
Introduction:
The book is pressed against on the wall. When we reduce the applying force to the book, the book remains in the same spot on the wall.
When F reduces R decreases. Since
Conclusion:
The maximum static frictional force of the wall on the book deceases.
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A point charge of -3.00 μC is located in the center of a spherical cavity of radius 6.60 cm inside an insulating spherical charged solid. The charge density in the solid is 7.35 × 10−4 C/m3. Calculate the magnitude of the electric field inside the solid at a distance of 9.10 cm from the center of the cavity. Find the direction of this electric field.
An infinitely long conducting cylindrical rod with a positive charge λ per unit length is surrounded by a conducting cylindrical shell (which is also infinitely long) with a charge per unit length of −2λ and radius r1, as shown in the figure.
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A very long conducting tube (hollow cylinder) has inner radius aa and outer radius b. It carries charge per unit length +α, where αα is a positive constant with units of C/m. A line of charge lies along the axis of the tube. The line of charge has charge per unit length +α. Calculate the electric field in terms of α and the distance r from the axis of the tube for r<a. Calculate the electric field in terms of α and the distance rr from the axis of the tube for a<r<b. Calculate the electric field in terms of αα and the distance r from the axis of the tube for r>b. What is the charge per unit length on the inner surface of the tube? What is the charge per unit length on the outer surface of the tube?
Chapter 5 Solutions
COLLEGE PHYSICS-ACHIEVE AC (1-TERM)
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