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Fluid ?ow dynamics are characterized by dimensionless numbers describing the ratio of forces on the ?uid. One such number characterizes the ratio of inertia to the force of surface tension: W=(pv^2l)/o Where W is dimensionless, p is the mass density of the ?uid, v is the speed of the ?uid, and l is a characteristic length scale of the ?uid. For this equation to be dimensionally correct, what are the dimensions of surface tension o? A. Setup [representative drawing(s), de?nition and categorization of quantities]: B. What variable(s) from the setup are you looking for? C. Solve for the quantities in Part B in terms of the known quantities youve de?ned in your setup (Part A).

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