Let W be the region in the plane lying below the graph of y = x 2 and above the x-axis, for x between 0 and 2. Suppose that W is the base of a solid S whose cross-sections perpendicular to the x-axis are semicircles. See diagram below.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Let W be the region in the plane lying below the graph of y = x
2 and above the x-axis,
for x between 0 and 2. Suppose that W is the base of a solid S whose cross-sections perpendicular to the
x-axis are semicircles. See diagram below.

Cross-section
(a) Find an expression A(x) for the area of the cross-section perpendicular to the x axis at coordinate x.
(b) Set up, but do not integrate, an integral representing the volume of S.
Transcribed Image Text:Cross-section (a) Find an expression A(x) for the area of the cross-section perpendicular to the x axis at coordinate x. (b) Set up, but do not integrate, an integral representing the volume of S.
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