Liquid ( = 9.6 kN/m 3 ) is flowing in a pipe at a steady rate, but

Liquid (γ = 9.6 kN/m³) is flowing in a pipe at a steady rate, but the direction of flow is unknown. Is the liquid moving upward or moving downward in the pipe? If the pipe diameter is 12 mm and the liquid viscosity is 3.0 × 10^–3 N^∙s/m², what is the magnitude of the mean velocity in the pipe?

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Elevation = 10 m - p = 110 kPa gage Elevation = 0 m p = 200 kPa gage