Use​ Pappus's theorem for surface area and the fact that the surface area of a sphere of radius q is 4πq2 to find the centroid of the semicircle y=q2−x2. What is the the centroid of the semicircle y=q2−x2 is x,y​, what is x= and what is y=?

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Q: HUFFLEPU 52 Use the method cylindrical shells to find the volume V the Solid obtained by rotating…

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Q: graph

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A: since u have asked multiple questions in single request so we will be answering only first question.

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