The density of the liquid flowing through the horizontal pipe in the drawing is 1200 kg/m3. The speed of the fluid at point A is 7.5 m/s while at point B it is 11 m/s. What is the difference in pressure, PB - PA, between points B and A? ... B. А) -3.9х 104 Рa В +5.0 x 104 Pa с) +2.5 х 104 Рa -1.9 х 103 Ра

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Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.