Connect Access for Fluid Mechanics
4th Edition
ISBN: 9781259877759
Author: Yunus A. Cengel Dr.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 1, Problem 33P
On average, an adult person breathes in about 7.0 liters of air per minute. Assuming atmospheric pressure and 20°C air temperature, estimate the mass of air in kilograms that a person breathes in per day.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
On a summer day in Narragansett, Rhode Island, the air temperatureis 74 ° F and the barometric pressure is 14.5 lbf/in 2 .Estimate the air density in kg/m 3 .
Calculate the mass of air (in kg) contained within a room 10 m long, 8 m wide, and 3 m high. Assumeatmospheric pressure and temperature of 79,501 N/m2 and 20°C, respectively.
Consider a tilted surface with an angle of 30 degrees. Oil (µ = 0.025 Pa.s) covers the inclined surface, and when a cubic object with a height of 0.1 m is placed on the tilted surface, a liquid film of 0.5 mm occurs. Suppose that the object slides down the surface with a constant velocity of 0.2 m/s. Determine the mass (in gram) and density of the object (in kg/m3).
Chapter 1 Solutions
Connect Access for Fluid Mechanics
Ch. 1 - What is a fluid? How does it differ from a solid?...Ch. 1 - Define internal, external, and open-channel flows.Ch. 1 - Define incompressible flow and in compressible...Ch. 1 - Consider the flow of air over the wings of an...Ch. 1 - What is forced flow? How does it differ from...Ch. 1 - How is the Mach number of a flow defined? That...Ch. 1 - When an airplane is flying at a constant speed...Ch. 1 - Consider the flow of air at a Mach number of 0.12....Ch. 1 - What is the no-slip condition? What causes it?Ch. 1 - What is a boundary layer? What causes a boundary...
Ch. 1 - What is a steady-flow process?Ch. 1 - Define stress, normal stress, shear stress, and...Ch. 1 - What are system, surroundings, and boundary?Ch. 1 - When analyzing the acceleration of gases as they...Ch. 1 - When is a system a closed system, and when is it a...Ch. 1 - You are to understand how a reciprocating air...Ch. 1 - What is the difference between pound-mass and...Ch. 1 - In a news ankle, is stated that a recently...Ch. 1 - Explain why the light-year has the dimension of...Ch. 1 - What is the net force acting on a car cruising at...Ch. 1 - A man goes to a traditional market to buy a steak...Ch. 1 - What is the weight, in N, of an object with a mass...Ch. 1 - What is the weight of a 1-kg substance in N,...Ch. 1 - Determine the mass and the weight of the air...Ch. 1 - A 3-kW resistance heater a water beater...Ch. 1 - A195-Ibm astronaut took his bathroom scale (a...Ch. 1 - The acceleration of high-speed aircraft sometimes...Ch. 1 - A 10-kg rock is thrown upward with a force of 280...Ch. 1 - The value of the gravitational acceleration g...Ch. 1 - At 45° latitude: the gravitational acceleration as...Ch. 1 - 1-32 The gravitational constant g is 9.807m/s2 at...Ch. 1 - On average, an adult person breathes in about 7.0...Ch. 1 - While solving a problem, a person ends up with...Ch. 1 - An airplane flies horizontally at 70m/s . Its...Ch. 1 - If the airplane of Prob. 1-35 weighs 17 lbf,...Ch. 1 - The boom of a fire truck raises a fireman (and his...Ch. 1 - A 6-kg plastic tank that has a volume of 0.18m3 is...Ch. 1 - Water at 15°C from a garden hose fills a 1.5 L...Ch. 1 - A forklift raises a 90.5 kg crate 1.80 m. (a)...Ch. 1 - The gas tank of a car is filled with a nozzle that...Ch. 1 - A pool of volume V (in m3) is to filled with water...Ch. 1 - Based on unit considerations alone, show that the...Ch. 1 - What is the importance of modeling in engineering?...Ch. 1 - What is the difference between the analytical and...Ch. 1 - When modeling an engineering process, how is the...Ch. 1 - What is the difference between precision and...Ch. 1 - How do the differential equations in the study of...Ch. 1 - What is the value of the engineering software...Ch. 1 - The weight of bodies may change somewhat from one...Ch. 1 - The reactive force developed by a jet to push an...Ch. 1 - An important design consideration in two-phase...Ch. 1 - Consider the flow of air through a wind turbine...Ch. 1 - A tank is filled with oil whose density is =850...Ch. 1 - If mass, heat, and work are not allowed to cross...Ch. 1 - The speed of an aircraft is given to be 260 m/s in...Ch. 1 - One J/kg is equal to (a) 1kPam3 (b) 1kNm/kg (c)...Ch. 1 - Which is a unit for power? (a) Btu (b) kwh (c)...Ch. 1 - The speed of an aircraft is given to be 950 km/h....Ch. 1 - The weight of a 10-kg mass at sea level is (a)...Ch. 1 - The weight of a 1 -Ibm mass is (a) 1Ibmft/s2 (b)...Ch. 1 - A hydroelectric power plant operates at its rated...Ch. 1 - Write an essay on the various mass- and...Ch. 1 - Search the Internet to find out how to properly...Ch. 1 - Another unit is kgf, which is a force unit used...Ch. 1 - Discuss why pressure tests of pressurized tanks...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A container, having 7 m3 volume, includes 800 kg of granite and air totally. Please determine air mass and overall specific volume. (ρgranite= 2500 kg/m3, ρair= 1.21 kg/m3)arrow_forwardIn a horizontal tube, its initial section is A1 = 800 cm2 , which reduces to A2 = 600 cm2 at the end of the tube. The mass amount is 0.1 slug/s of air (p = 1.25 kg/s). Assuming ideal fluid flow and steady state, calculate the pressure difference between A1 and A2. Answer:p1 - p2 = 1.75 kgf/m2arrow_forwardIf 15.7 m³ of atmospheric air at 149 degrees centigrade temperature are compressed to a volume of 11.2 m³ at zero degrees centigrade, what will be the vacuum pressure of air in kPav?arrow_forward
- A closed container contains 1.5m high of water, 2.5m high of oil (SG= 0.8), an unknown liquid (SG= 1.25) whose height is 1.6m, and the pressure at the top of the mixture is 17 KPa. Determine the pressure head at the bottom of the container in millimeters of mercury (SG= 13.6)arrow_forwardFor a gas, which of the following does not vary with temperature? - the gas soecific weight - the gas dynamic viscosity - the gas specific volume - the gas constant R - the gas densityarrow_forwardSaturated steam at a temperature of 65°C condenses on a vertical plate surface at 55°C. At a location 0.2 m from the plate top, determine the following parameters on the basis of per unit width of the plate. The fluid property values are: ρl = 985 kg/m3; ρv = 0.1614 kg/m3; kl = 0.6513 W/m.K; cp = 4183 J/kg.K; μl = 4.7083×10^– 4 kg/m.s; hfg = 2346.2 kJ/kg (use this value of hfg, where needed, without modifying it). a) find Thickness of the condensate film b) find condensate heat flow rate c) local convective heat transfer coefficient and condensate flow rate for (b=1)arrow_forward
- With reference to Pb. 2.43, assume air to be an ideal gas, and develop an expression giving the household air temperature as a function of time. Pb. 2.43 inserted imagearrow_forwardA vessel of volume 8.7m3 contains air and dry saturated steam(Psteam = 0.04bar, vsteam = 34.8m3/kg) at a total pressure of 0.06bar and temperature 29o Calculate the mass of steam Calculate the mass of airarrow_forwardIn an internal combustion engine, air at 1 atm and temperature of about 20°C is compressed by the piston to 19 of its original volume. (a) What is the temperature of the compressed air; if the pressure (absolute) increases to 40 atm. (b) An automobile cooling system holds 16 L of water. How much heat does its temperature rises from 20°C to 90°C ? [ 1 m3 = 1000 L ; Specific Heat of Water = 4186 J/kg °C ]arrow_forward
- A.What is the increase in temperature of 2 m³ of air at 30°C after 15000 calories of heat have added to it at constant pressure? The density of the air is 1.2 kg/ m³. B. a volume of 25 in³of air measured at a pressure of 30 inHG absolute and a temperature of 70 °F what is the volume in cm³ at 10 psig and 2 °C?arrow_forwardThe dynamic viscosity of air at 20°C and 200 kPa is 1.83 × 10−5 kg/m⋅s. The kinematic viscosity of air at this state is (a) 0.525 × 10−5 m2/s (b) 0.77 × 10−5 m2/s (c) 1.47 × 10−5 m2/s (d ) 1.83 × 10−5 m2/s (e) 0.380 × 10−5 m2/sarrow_forwardFor a substance, what is the difference between mass and molar mass? How are these two related?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- 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
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Thermodynamic Availability, What is?; Author: MechanicaLEi;https://www.youtube.com/watch?v=-04oxjgS99w;License: Standard Youtube License