(5) As shown in the image, an air space above a long tube is pressurized to 50 kPa vacuum. Water (15°C) from a reservoir fills the tube to a height h. If the pressure in the air space is changed to 25 kPa vacuum, will h increase or decrease, and by how much? Assume atmospheric pressure is 100 kPa. acuum, will h increase or descrease and by how much? ime atmospheric pressure is 100 kPa. BRODEPU h Air space Water

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2. Water and oil flow in horizontal pipelines. A double U-tube manometer is connected between the pipelines, as shown in figure below. Calculate the pressure difference between the water pipe and the oil pipe. * Air Oil 25 mm Water 150 mm Sz =0.9 250 mm S =1.6

Convert the 115/85 systolic/diastolic pressures given in millimeters of Hg to Pa .

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An initially empty tank on Earth is being filled with water so that the height of the water in the tank increases at a steady rate. Which one of the following graphs best describes the gauge pressure P at a point on the bottom of this tank as a function of time t during the filling process? Assume the tank starts filling at time t = Os and that the top of the tank is open to the atmosphere. The atmospheric pressure does not change during the process. The water in the tank does not overflow or reach the top of the tank during this process. A) D) P B)

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1.) A pressure in a given tank reads 398 mm of Hg. Determine the equivalent height of a certain fluid in m with sp.gr= 4.33.

The water in a tank is pressurized by air, and the pressure is measured by a multifluid manometer as shown. The tank is located on a mountain at an altitude of 1400m where the atmospheric pressure is 89.6 kPa. Determine the pressure of air in the tank if h1 = 0.5m, h2 = 0.5m, and h3 = 0.6m. Take the densities of water, oil and mercury to be 1000kg/.850 kg/and 13,600 kg/

2- The density of a liquid is to be determined by an old 1-cm-diameter cylindrical hydrometer whose division marks are completely wiped out. The hydrometer is first dropped in water, and the water level is marked. The hydrometer is then dropped into the other liquid, and it is observed that the mark for water has risen S cm above the liquid-air interface. If the height of the original water mark is 12.7 cm, determine the density of the liquid S (cm) Last names starting 0.95 with A to L Unknown liquid Mark for water S cm