Chapter 7: Problem 4
Surface of Revolution Describe a surface of revolution in your own words.
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These are the key concepts you need to understand to accurately answer the question.
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Chapter 7: Problem 4
Surface of Revolution Describe a surface of revolution in your own words.
These are the key concepts you need to understand to accurately answer the question.
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Using Cross Sections Find the volumes of the solids whose bases are bounded by the circle \(x^{2}+y^{2}=4,\) with the indicated cross sections taken perpendicular to the \(x\) -axis. (a) Squares (b) Equilateral triangles (c) Semicircles (d) Isosceles right triangles
Lateral Surface Area of a Cone A right circular cone is generated by revolving the region bounded by \(y=h x / r\) , \(y=h,\) and \(x=0\) about the \(y\) -axis. Verify that the lateral surface area of the cone is \(S=\pi r \sqrt{r^{2}+h^{2}}\)
$$\begin{array}{l}{\text { Describing Cylindrical Shells Consider the plane }} \\\ {\text { region bounded by the graphs of } y=k, y=0, x=0,} \\ {\text { and } x=b, \text { where } k>0 \text { and } b>0 . \text { What are the heights }} \\ {\text { and radii of the cylinders generated when this region is }} \\ {\text { revolved about (a) the } x \text { -axis and (b) the } y \text { -axis? }}\end{array}$$
Using a Loop Consider the graph of \(y^{2}=\frac{1}{12} x(4-x)^{2}\) shown in the figure. Find the area of the surface formed when the loop of this graph is revolved about the \(x\) -axis.
Conjecture Use Newton's Law of Universal Gravitation to make a conjecture about what happens to the force of attraction between two particles when the distance between them is multiplied by a positive number \(n .\)
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