A hospital patient is being fed intravenously with a liquid of density 1060 kg/m3. The container of liquid is raised 1.27 m above the patient’s arm where the fluid enters his veins. What is the pressure this fluid exerts on his veins, expressed in millimeters of mercury? Use g=9.8ms2 and 1mmHg=133.3Pa.

During forced exhalation, such as when blowing up a balloon, the diaphragm and chest muscles create a pressure of 60.0 mm Hg between the lungs and chest wall. What force in newtons does this pressure create on the 600 cm2 surface area of the diaphragm?

Blood plasma (at 37.0°C) is to be supplied to a patient at the rate of 2.80 x 10-6 m3/s. If the tube connecting the plasma to the patient's vein has a radius of 2.00 mm and a length of 56.3 cm, what is the pressure difference between the plasma and the patient's vein? Viscosity of blood plasma is 1.30 × 103 Pa-s. Pa

Ella’s boyfriend would like to make a very romantic wedding proposal. He decides to propose in a hot air balloon. He and Ella go to the spot where the hot air balloon will lift off the ground. Ella, who has taken physics, decides to do a few calculations to make sure they will be safe. The average density of the heated gas that will go in the hot air balloon is 0.96 kg/m3 . The basket and the propane tank weigh 1800N. The balloon fabric weighs 800N. Ella has a mass of 50kg and her boyfriend ha a mass of 65kg. The density of air is 1.23kg/m3 . a) What must be the minimum volume of the balloon in order to lift Ella and her boyfriend off the ground? b) If the volume of the balloon is 3 times what you found in part a, what is the net force on the basket that Ella and her boyfriend are in ?

The four tires of an automobile are inflated to a gauge pressure of 2.3 x 10° Pa. Each tire has an area of 0.025 m2 in contact with the ground. Determine the weight of the automobile.

A pressurized tank supplies water to a hose. The hose rises h=1.3 m above the tank before spraying water a speed of 6.0 m/s. What is the pressure in the tank?  (Patm= 1.013x105)

The Venturi tube shown in the figure below may be used as a fluid flowmeter. Suppose the device is used at a service station to measure the flow rate of gasoline (ρ = 7.00 ✕ 102 kg/m3) through a hose having an outlet radius of 1.19 cm. The difference in pressure is measured to be P1 − P2 = 1.30 kPa and the radius of the inlet tube to the meter is 2.38 cm. The flow within a horizontal tube is depicted by five lines. The tube extends from left to right, with the left end wider than the right end. The five lines start at the left end, go horizontally to the right, curve slightly toward the center of the tube such that all five lines come closer together, and again go horizontally to the right to exit at the right end. Arrows on the lines point to the right to represent the direction of flow. The pressures at the left and right ends are represented by scale readings. The pressure at the left end is labeled P1, and P1 is greater than the pressure at the right end labeled P2. (a) Find the…

A vertical test tube has 4 cm of oil floating (density of 900 kg/m3 ) on 8 cm of seawater (density = 1030 kg/m3).   Find the pressure at the bottom of the tube due to the fluids on it.  Express your answer in kPa.

A dolphin is in ocean at a depth of 29.1 m. What is the absolute  pressure (in Pa) at this depth? The density of the water in the ocean is 1.00 ✕ 103 kg/m3, and the air above is at a pressure of 101.3 kPa.

A U-shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is 17.4 cm deep. How far upward from its initial position does the mercury in the right arm rise? Express the change in mercury level in mm