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- An underwater oil and gas piping system is going to be established through South China Sea connecting Kerteh in Terengganu and Bintulu in Sarawak. The piping has an outside diameter of 400mm with wall thickness of 50mm. The material used for the piping is steel with E= 200 GPa, yield stress = 250 MPa, Poisson's ratio, v=0.3. The deepest sea is at 900m depth with the density of sea water is, p = 1050 kg/m3. What is the highest internal pressure that can be applied to pump the oil going through the piping if the maximum shear stress of the piping is allowed to be 120 MPa only. With the calculated value, sketch also the stresses profile along the thickness of the pipe.The four tires of an automobile are inflated to a gauge pressure of 1.9 x 105 Pa. Each tire has an area of 0.024 m² in contact with the ground. Determine the weight of the automobile. NBlood pressure is measured when the blood is pumping (systolic) and when the heart is resting (diastolic). When pressure readings are given, the systolic is given first, and healthy blood pressure is around 120 over 80 mm Hg. Recall the density of mercury is 13.6 × 103 kg/m3. a. Suppose you have a blood pressure reading of 116 over 82 mm Hg. What is your systolic pressure, in newtons per meter squared? b. Suppose you have a blood pressure reading of 116 over 82 mm Hg. What is your diastolic pressure, in newtons per meter squared?
- At a given instant, the blood pressure in the heart is 1.6x104 Pa. If an artery in the brain is 0.45 m above the heart, what is the pressure in the artery? Ignore any pressure changes due to blood flow.At a given instant, the blood pressure in the heart is 1.4 x 104 Pa. If an artery in the brain is 0.37 m above the heart, what is the pressure in the artery? Ignore any pressure changes due to blood flow.A water tank of constant depth H, open to the atmosphere, is connected to the piping system, as shown in Figure P8.45. After a length of pipe L of diameter D, the diameter decreases smoothly to a value of D/2 and then continues on for another length L before exiting to atmosphere. The flow is turbulent and the friction factor f is the same for all piping. CD1 and CD2 are the loss coefficients for the entry and exit. Calculate the depth of the tank required to produce a mean exit velocity of V .
- The pressure drop along a length of artery is 103 Pa, the radius is 9.5 mm, and the flow is laminar. The average speed of the blood is 16.5 mm/s.Randomized Variables P = 103 Par = 9.5 mms = 16.5 mm/s a. What is the net force on the blood in this section of artery in N? b. What is the power expended maintaining the flow in mW?(a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 22.4 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 36.0 cm? NAt a given instant, the blood pressure in the heart is 1.7 x 104 Pa. If an artery in the brain is 0.46 m above the heart, what is the pressure in the artery? Ignore any pressure changes due to blood flow.
- A scuba diver makes a slow descent into the depths of the ocean. His vertical position with respect to a boat on the surface changes several times. He makes the first stop 8.0 m from the boat but has a problem with equalizing the pressure, so he ascends 2.0 m and then continues descending for another 12 m to the second stop. From there, he ascends 3.0 m and then descends for 17 m, ascends again for 8.0 m and descends again for 22 m, where he makes a stop, waiting for his buddy. Assuming the positive direction up to the surface, express his net vertical displacement vector in terms of the unit vector. What is his distance to the boat? Enter the exact answers. The scuba diver's net displacement is Number m Ĵ. The scuba diver's distance to the boat is Number m.8. 7. 9. 4. V & B/口 X 94 E3 L1 OL 61 f5 SNSV %3D kPa density of water is 1000 kg/m³. Calculate the pressure p in kPa at the new height. The upward, rising 2.1 m before returning to horizontal. pressure 205 kPa and speed 2 m/s when it curves A pipe of constant radius carries water horizontally at aA PROBLEMS 6.63, 6.64 6.64 This "double" nozzle discharges water (at 10°C) into the atmosphere at a rate of 0.50 m /s. If the nozzle is lying in a horizontal plane, what x-component of force acting through the flange bolts is required to hold the nozzle in place? Note: As- sume irrotational flow, and assume the water speed in each jet to be the same. Jet A is 10 cm in diameter, jet B is 12 cm in diame- ter, and the pipe is 30 cm in diameter.