A syringe which has an inner diameter of 0.600 mm is attached to a needle with an inner diameter of 0.250 mm. A nurse uses the syringe to inject an ideal fluid into a patient's artery where blood pressure is 134/90. What minimum force Fmin must the nurse apply to the syringe? The minimum force is the force that prevents flow of Fmin = blood back into the syringe at any time during the injection.
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- A collapsible plastic bag contains a glucose solution. If the average gauge pressure in the blood vein is 1.30e4 Pa, what must be the minimum height ℎh of the bag in order to infuse glucose into the vein? Assume that the density of glucose is 1.02 times the density of water and the pressure in the glucose solution is atmosphere because the bag is compressible and the pressure outside the bag is atmosphere.A tall, open container is full of glycerine. At what depth ℎ below the surface of the glycerine is the pressure 2390 Pa greater than atmospheric pressure? The density of glycerine is 1.26×103 kg/m3.You come across an open container that is filled with two liquids. Since the two liquids have different densities, there is a distinct separation between them. Water, which has a density of pw = 1.00 x 10° kg/m², fills the lower portion of the container to a depth of 0.206 m. The fluid that is floating on top of the water is 0.314 m deep. If the absolute pressure on the bottom of the container is 1.049 × 10° Pa, what is the density, p1, of the unknown fluid? The acceleration due to gravity is g = 9.81 m/s² and atmospheric pressure is Po = 1.013 × 10° Pa. Pi = kg/m³
- The two arms of a U-tube are not identical, one having 6 times the diameter of the other. A cork in the narrow arm requires a force of F1 = 79 N to remove it. The tube is filled with water and the wide arm is fitted with a piston with area A2. What is the minimum force, F2, that must be applied to the piston to push the cork out?If the viscosity of blood is 2.1x 10^-3 pa.s, and capillary of 100 um radius has a length of 4cm , then the blood flow resistance a cross this capillary be * 214x10^12 pa.sm^-3 2.14x10^12 pa.sm^-3 0.214 x10^12 pa.sm^-3 0.00214x10^12 pa.sm^-3An otter is swimming in the deep area of his tank at the zoo. The surface area of the otter's back is A = 0.45 m², and you may assume that his back is essentially flat. The gauge pressure of the water at the depth of the otter is P = 10500 Pa. Po- F= α 8 g k Po Enter an expression for the magnitude of the force F on the back of the otter in terms of the gauge pressure P and the atmospheric pressure ß A h m S π d j P t Solve for the magnitude of the force F, in newtons. The direction of the force F is always (||7|8 | 9 1^^ 4 5 6 1 2 3 0 END NO BACKSPACE DEL CLEAR * y HOME X Ⓒtheexpertta.com to the surface the water is in contact with (in this case, the back of the otter).
- A submersible vehicle is in a lake at a depth of 29.6 m. What is the absolute pressure (in Pa) at this depth? The density of the water in the lake is 1.00 ✕ 103 kg/m3, and the air above is at a pressure of 101.3 kPa. Pa (b) The submersible vehicle has a circular window with a diameter of 42.0 cm. What force (in N) is exerted by the water on the window of the vehicle at the depth from part (a)? (Enter the magnitude.) a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 26.6 m. Assume the density of the water is 1.00 ✕ 103 kg/m3 and the air above is at a pressure of 101.3 kPa. Pa (b) What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 29.0 cm? Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube has cross-sectional area A1 of 10.8 cm2, and the right arm has a cross-sectional area A2 of 5.50 cm2. One hundred grams of water…A tall, open container is full of glycerine. At what depth h below the surface of the glycerine is the pressure 2290 Pa greater than atmospheric pressure? The density of glycerine is 1.26x103 kg/m3.An empty rubber balloon has a mass of 12.5 g. The balloon is filled with helium at a density of 0.181 kg/m33. At this density the balloon has a radius of 0.268 m. If the filled balloon is fastened to a vertical line, what is the tension in the line? The density of air is 1.29 kg/m33.
- A tall, open container is full of glycerine. At what depth h below the surface of the glycerine is the pressure 2210 Pa greater than atmospheric pressure? The density of glycerine is 1.26 × 10° kg/m³. h =While taking a shower, you notice that the shower head is made up of 44 small round openings, each with a radius of 2.00 mm. You also determine that it takes 5.00 s for the shower to completely fill a 1.00-liter container you hold in the water stream. The water for the shower is pumped by a pump that is 5.50 m below the level of the shower head. The pump maintains an absolute pressure of 1.50 atm. Use g = 10 m/s2, and assume that 1 atmosphere is 1.0 105 Pa. (a) At what speed does the water emerge from the shower head? (b) What is the speed of the water in the pipe connected to the pump? (c) What is the cross-sectional area of the pipe connected to the pump?If blood with a speed of 11.0 cm/s and density of 1043 kg/m3 travels from a 0.030 mm diameter capillary to a 0.0400 mm diameter capillary with a 2.00% increase in density, what is its new speed? Why the change in density?