College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 10, Problem 54AP
(a)
To determine
The percentage increase in the moment of inertia for copper.
(b)
To determine
The percentage increase in the moment of inertia for aluminum.
(c)
To determine
Why the answers of (a) and (b) is the same for all shapes.
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Consider an object with any one of the shapes displayed in Table 8.1. What is the percentage increase in the moment of inertia of the object when it is warmed from 0°C to 100°C if it is composed of (a) copper or (b) aluminum? Assume the average linear expansion coefficients shown in Table 10.1 do not vary between 0°C and 100°C. (c) Why are the answers for parts (a) and (b) the same for all the shapes?
Consider the figure attached.
An illustration of a circular steel casting with a gap.
(a) If the casting is heated, does the width of the gap increase or decrease?
a. increase
b. decrease
(b) The gap width is 1.510 cm when the temperature is 30.0°C. Determine the gap width when the temperature is 175°C. (Use 11 ✕ 10−6 (°C)−1 for the average coefficient of linear expansion for steel. Give your answer to at least three decimal places.)______ cm
Figure P10.27 shows a circular steel casting with a gap. If the casting is heated, (a) does the width of the gap increase or decrease? (b) The gap width is 1.600 cm when the temperature is 30.0°C. Determine the gap width when the temperature is 190°C.
Chapter 10 Solutions
College Physics
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