To determine The pressure difference between the top and bottom of the container. Explanation Write the expression to determine pressure at the oil-water interface P 1 . P 1 = P atm + ( ρ g h ) oil ( P 1 − P atm ) = ( ρ g h ) oil P gage = ρ o g h o (I) Here, the density of oil is ρ o , gage pressure is P gage and the height of the oil level is h o . Write the expression of the pressure at the bottom of the tank P 2 . P 2 = P gage + P water = P gage + ρ w g h w (II) Here, the density of water is ρ w , the height of the water level is h w , and acceleration of gravity is g . Conclusion: Substitute 55 lb / ft 3 for ρ o , 17 ft for h o and 32.2 ft / s 2 for g in Equation (I) P gage = [ 55 lb / ft 3 ( 1 lbf 32.174 lb ⋅ ft/s 2 ) ( 32.2 ft/s 2 ) ( 17 ft ) ( 1 ft 2 144 in 2 ) ] = 6

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Chapter 1.9, Problem 48P

To determine

The pressure difference between the top and bottom of the container.

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Ch. 1.9 - Prob. 1E Ch. 1.9 - Prob. 2E Ch. 1.9 - 3. The driver’s compartment of race cars can reach...Ch. 1.9 - 4. What causes changes in atmospheric pressure? Ch. 1.9 - 5. Why are passenger airplane cabins normally...Ch. 1.9 - 6. Laura takes an elevator from the tenth floor of...Ch. 1.9 - 7. How do dermatologists remove precancerous skin...Ch. 1.9 - 8. When one walks barefoot from a carpet onto a...Ch. 1.9 - 9. Why does ocean water temperature vary with...Ch. 1.9 - 10. Are the systolic and diastolic pressures...

Ch. 1.9 - 11. How do forehead temperature strips work? Ch. 1.9 - 12. How does a pressure measurement of 14.7 psig...Ch. 1.9 - 13. What is a nanotubel Ch. 1.9 - 14. If a system is at steady state, does this mean...Ch. 1.9 - For problems 1-10, match the appropriate...Ch. 1.9 - Prob. 11CU Ch. 1.9 - 12. Describe the difference between specific...Ch. 1.9 - 13. A system is said to be at ___________ if none...Ch. 1.9 - 14. A control volume is a system that (a) always...Ch. 1.9 - 15. What is the objective of an engineering model...Ch. 1.9 - 16. _______________ is pressure with respect to...Ch. 1.9 - 17. A gas contained within a piston–cylinder...Ch. 1.9 - 18. The statement, “When two objects are in...Ch. 1.9 - 19. SI base units include (a) kilogram (kg), meter...Ch. 1.9 - 20. Explain why the value for gage pressure is...Ch. 1.9 - 21. A system is at steady state if (a) none of its...Ch. 1.9 - Prob. 22CU Ch. 1.9 - 23. Classify items a through g shown on the...Ch. 1.9 - 24. When a system is isolated, (a) its mass...Ch. 1.9 - 25. The resultant pressure force acting on a body...Ch. 1.9 - 26. The list consisting only of intensive...Ch. 1.9 - 27. Gage pressure indicates the difference between...Ch. 1.9 - 28. Systems can be studied only from a macroscopic...Ch. 1.9 - 29. Kilogram, second, foot, and newton are all...Ch. 1.9 - Prob. 30CU Ch. 1.9 - 31. Mass is an intensive property. Ch. 1.9 - Prob. 32CU Ch. 1.9 - 33. Intensive properties may be functions of both...Ch. 1.9 - 34. Devices that measure pressure include...Ch. 1.9 - Prob. 35CU Ch. 1.9 - 36. If a system is isolated from its surroundings...Ch. 1.9 - 37. The specific volume is the reciprocal of the...Ch. 1.9 - Indicate whether the following statements are...Ch. 1.9 - 39. The pound force, lbf, is equal to the pound...Ch. 1.9 - 40. The value of a temperature expressed using the...Ch. 1.9 - Prob. 41CU Ch. 1.9 - 42. A closed system always contains the same...Ch. 1.9 - Prob. 43CU Ch. 1.9 - 44. A control volume is a special type of closed...Ch. 1.9 - 45. When a closed system undergoes a process...Ch. 1.9 - Prob. 46CU Ch. 1.9 - Prob. 47CU Ch. 1.9 - 48. A vessel holding 0.5 kg of oxygen (O2)...Ch. 1.9 - Prob. 49CU Ch. 1.9 - 50. In local surroundings at standard atmospheric...Ch. 1.9 - Prob. 51CU Ch. 1.9 - 52. The Rankine degree is a smaller temperature...Ch. 1.9 - 53. If the value of any property of a system...Ch. 1.9 - Prob. 54CU Ch. 1.9 - 55. The composition of a closed system cannot...Ch. 1.9 - 56. Temperature is the property that is the same...Ch. 1.9 - Prob. 57CU Ch. 1.9 - 58. The pressure unit psia indicates an absolute...Ch. 1.9 - 1.4 Perform the following unit conversions: (a) 1...Ch. 1.9 - 1.5 Perform the following unit conversions: (a)...Ch. 1.9 - 1.6 Which of the following food items weighs...Ch. 1.9 - 1.7 A person whose mass is 150 lb weighs 144.4...Ch. 1.9 - 1.8 The Phoenix with a mass of 350 kg was a...Ch. 1.9 - Prob. 9P Ch. 1.9 - 1.10 In severe head-on automobile accidents, a...Ch. 1.9 - Prob. 11P Ch. 1.9 - 1.12 A spring compresses in length by 0.14 in, for...Ch. 1.9 - 1.13 At a certain elevation, the pilot of a...Ch. 1.9 - 1.14 Estimate the magnitude of the force, in Ibf,...Ch. 1.9 - 1.15 Determine the upward applied force, in Ibf,...Ch. 1.9 - 1.16 An object is subjected to an applied upward...Ch. 1.9 - 1.17 A communications satellite weighs 4400 N on...Ch. 1.9 - 1.18 Using local acceleration of gravity data from...Ch. 1.9 - 1.19 A town has a 1-million-gallon storage...Ch. 1.9 - 1.20 A closed system consists of 0.5 kmol of...Ch. 1.9 - 1.21 A 2-lb sample of an unknown liquid occupies a...Ch. 1.9 - Prob. 22P Ch. 1.9 - 1.23 The specific volume of 5 kg of water vapor at...Ch. 1.9 - Prob. 24P Ch. 1.9 - 1.25 As shown in Figure P1.25, a gas is contained...Ch. 1.9 - 1.26 As shown in Fig. P1.26, a vertical...Ch. 1.9 - 1.27 Three kg of gas in a piston-cylinder assembly...Ch. 1.9 - 1.28 A closed system consisting of 4 lb of a gas...Ch. 1.9 - 1.29 A system consists of carbon monoxide (CO) in...Ch. 1.9 - 1.30 Figure P1.30 shows a gas contained in a...Ch. 1.9 - 1.31 A gas contained within a piston-cylinder...Ch. 1.9 - Prob. 32P Ch. 1.9 - 1.33 Figure P 1.33 shows a storage tank holding...Ch. 1.9 - 1.34 As shown in Figure PI.34, the exit of a gas...Ch. 1.9 - 1.35 The barometer shown in Fig. P1.35 contains...Ch. 1.9 - Prob. 36P Ch. 1.9 - Figure P1.37 shows a tank within a tank, each...Ch. 1.9 - 1.38 As shown in Fig. PI.38, an underwater...Ch. 1.9 - 1.39 Show that a standard atmospheric pressure of...Ch. 1.9 - 1.40 A gas enters a compressor that provides a...Ch. 1.9 - 1.41 As shown in Figure P1.41. air is contained in...Ch. 1.9 - Prob. 42P Ch. 1.9 - 1.43 The pressure from water mains located at...Ch. 1.9 - 1.44 Figure P1.44 shows a tank used to collect...Ch. 1.9 - 1.45 If the water pressure at the base of the...Ch. 1.9 - 1.46 As shown in Figure P1.46. an inclined...Ch. 1.9 - 1.47 Figure P1.47 shows a spherical buoy, having a...Ch. 1.9 - 1.48 Because of a break in a buried oil storage...Ch. 1.9 - 1.49 Figure P1.49 shows a closed tank holding air...Ch. 1.9 - 1.50 The 30-year average temperature in Toronto,...Ch. 1.9 - 1.51 Convert the following temperatures from °F to...Ch. 1.9 - Prob. 52P Ch. 1.9 - 1.53 A cake recipe specifies an oven temperature...Ch. 1.9 - 1.54 Does the Rankine degree represent a larger or...Ch. 1.9 - 1.55 Figure P1.55 shows a system consisting of a...Ch. 1.9 - What is (a) the lowest naturally occurring...Ch. 1.9 - 1.57 Air temperature rises from a morning low of...Ch. 1.9 - 1.58 For liquid-in-glass thermometers, the...

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