February 20, 2017

Homework Help: Math - Calculus

Posted by Elsi on Saturday, December 15, 2012 at 1:17pm.

Water is flowing in a cylindrical pipe of radius 1 inch. Because water is viscous and sticks to the pipe, the rate of flow varies with distance from the center. The speed of the water at distance r inches from the center is 10(1-(r^2)) per second. What is the rate (in cubic inches per second) at which water is flowing through the pipe?

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