A pneumatic cylinder (a piston cylinder with air) must close a door with a force of
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
EBK FUNDAMENTALS OF THERMODYNAMICS, ENH
Additional Engineering Textbook Solutions
Applied Statics and Strength of Materials (6th Edition)
Applied Fluid Mechanics (7th Edition)
Engineering Mechanics: Statics
Introduction to Heat Transfer
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Manufacturing Engineering & Technology
- Temperature of nitrogen in a vessel of volume 2 m' is 288 K. A U-tube manometer connected to the vessel shows a reading of 7 cm of mercury (level higher in the end open to atmosphere). The universal gas constant is 8314 J/kg-mol-K, atmospheric pressure is L01325 bar, acceleration due to gravity is 981m/s² and density of mercury is 13600 kg / m’. The mass of nitrogen (in kg) in the vessel is 3arrow_forward3. A spaceship lands on a planet where the atmosphere is completely kgm, made of water (p = 1000 The ship sinks a total of 20m m- before reaching solid ground. How much pressure(kpa) is the ship m, experiencing if g = 20 →? 4. From #3, the ship was 1000 kgm when it left earth. How much does it weigh in N and kgf if it lands on solid ground in another planet with g = 20 ?arrow_forwardHow much force is needed to pull a spring with a spring constant of 40 N/m a distance of 35 cm?arrow_forward
- 35 kg of certain gas is contained within the piston- cylinder assembly. THE GAS undergoes a process which is pv=constant.The given conditions as follows; p1=6bars,v1=0.2cubic meters,v2=0.4 cubits meters,the change of internal energy=10.5kj/kg.(hints:kE=PE=0) A)Find P2 in bars B) Find the work in kj for n=1.0 C) Find the net heat transfer Q for the process in kjarrow_forwardAn air bubble rises from the bottom of a well where the temperature is 25oC, to the surface where the temperature is 27o If the depth of the well is 5m and the atmospheric pressure is 101.325kPa, determine the following: Initial pressure inside the air bubble (P1). Volume of air bubble at state 1. Volume of air bubble at state 2. Percent increase in volume of the bubble.arrow_forwardThe hydraulic jack in the figure is used to lift a 1000 kg mass load to a height y2 = 150 mm. The diameter of the lift cylinder is D = 50 mm. With this information, analyze the system and determine. a) The pressure, in bar.b) The diameter d of the hand pump cylinder, so that the driving force F1 is 50 N. c) If the maximum displacement of the pump pistonfor y1 = 20 mm, how many drives will it take to fully lift the load? d) If you want to reduce the number of actuations by 2/3, keeping the diameter of the lift cylinder, D, the same actuation force F1, and the stroke y1, what geometric changes can be made in the system?arrow_forward
- A U-tube manometer using mercury shows that the gas pressure inside a tank is 30cm. Calculate the actual pressure of the gas inside the vessel if the local barometer gives atmospheric pressure as 1 bar Take g = 9.805 m/s?, density of mercury=13600kg/m3 Select one: O a. 1.40 KPa O b. 1.60 Bar O .0.40 Bar O d. 1.40 Bararrow_forwardThe Louisiana Superdome has an interior volume of 125 million ft3, covered by a 440,000 ft² roof. On a particular day, the interior air pressure gave a manometer reading of 19 inches mercury (pHg = 13.6 g/cm³). Local atmospheric pressure is 102 kPa. 1. kg Calculate the mass of the air inside, assuming an average temperature of 20 °C. 2. kN Calculate the net force applied to the roof by the interior/exterior air (do not account for the weight of the roof). Assume the roof is flat.arrow_forward1. A certain ideal gas X has molecular weight of 10 g/mol and specific heat ratio of 2. Initially, X has pressure of 20OKPA and volume of 2m3. The pressure was doubled during heat transfer. Find the heat transfer if it underwent a process described by a. n=infinity b. n=Cp/Cv c n=3arrow_forward
- 1. Pressures up to 3000 bar are measured with a dead-weight gauge. The piston diameter is 4 mm. What is the approximate mass in kg of the weights required? 2. A gas is confined in a 0.47 m diameter cylinder by a piston, on which rests a weight. The mass of the piston and weight together is 150 kg. The local acceleration of gravity is 9.813 m's-2, and atmospheric pressure is 101.57 kPa. (a) What is the force in newtons exerted on the gas by the atmosphere, the piston, and the weight, assuming no friction between the piston and cylinder? (b) What is the pressure of the gas in kPa? (c) If the gas in the cylinder is heated, it expands, pushing the piston and weight upward. If the piston and weight are raised 0.83 m, what is the work done by the gas in kJ? What is the change in potential energy of the piston and weight? 3. Steam at 1400 kPa and 350°C [state 1] enters a turbine through a pipe that is 8 cm in diameter, at a mass flow rate of 0.1 kg: s-1. The exhaust from the turbine is…arrow_forwardA European automobile has a gas mileage of 17 km/L. What is the car’s gas mileage in miles per gallon?arrow_forwardWater d2 = 190 mm d, = 500 mm d3 = 275 mm A B Blood In a laboratory, a two fluid manometer (as shown) is used to measure the pressure difference between two points A and B in a conduit carrying blood. Calculate the pressure difference assuming that the density of blood is 1,060 kg/m3 and the density of the water is 1,000 kg/m³. Give your answer in Pa.arrow_forward
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY