The mass a liquid flowing per second per
unit area of cross section of a tube is pro-
portional to PX and Vy, where P is the pres-
sure difference and v is the velocity. Then
the relation between x and y is
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The mass of the liquid flowing per second per unit area of cross section of the tube is proportional to Pxandvy , where P is the pressure difference and v is the velocity , then the relation between x and Y is. From here, we get y=-1 . Thus , x=-y.
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