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(1). The mass density of a semicircular wire of radius a varies directly with the distance...

(1). The mass density of a semicircular wire of radius a varies directly with the distance from the diameter that joins the two endpoints of the wire. ​Find the mass equation 人(x,y)

(2) Let say now the density varies directly as the cube of the distance from the line that divided the wire in half vertically. Fin the mass equation 人(x,y)

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