College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 1 - Multiple-Choice Questions - Page 18: 2

Answer

(b) 8

Work Step by Step

Let $x$ be the length of each edge of the cube. Then the volume of the cube is $V_1 = x^3$. When the length of each edge is doubled, each edge of the cube has a length of $2x$. The volume of the new cube is $V_2 = (2x)^3 = 8x^3 = 8V_1$ The correct answer is (b) 8
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