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Materials Science And Engineering Properties
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter6: Introduction To Mechanical Properties
Section: Chapter Questions
Problem 6.8P
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11 and 12 please :) ill thumbs up
This refers to a material property whereby a liquid at a material interface, usually liquid-gas, exerts a force per unit length along the surface. According to the theory of molecular attraction, molecules of liquid considerably below the surface act on each other by forces that are equal in all directions. However, molecules near the surface have a greater attraction foreach other than they do for molecules below the surface because of the presence of a different substance above the surface. A. Viscosity B. Surface Tension C. Vapor Pressure D. Bulk Modulus of Elasticity E. None of the above OA ОВ OC OD OE
Transcribed Image Text:This refers to a material property whereby a liquid at a material interface, usually liquid-gas, exerts a force per unit length along the surface. According to the theory of molecular attraction, molecules of liquid considerably below the surface act on each other by forces that are equal in all directions. However, molecules near the surface have a greater attraction foreach other than they do for molecules below the surface because of the presence of a different substance above the surface. A. Viscosity B. Surface Tension C. Vapor Pressure D. Bulk Modulus of Elasticity E. None of the above OA ОВ OC OD OE
O A O B D The hydrostatic equation is used to predict pressure variation in a fluid with constant density. Piezometric head, h, a property that is widely used in fluid mechanics, characterizes hydrostatic equilibrium. When hydrostatic equilibrium prevails in a body of fluid of constant density, then h will be constant at all location. Which of the following represents the concept of piezometric head. p A. h = =+z Y B. h=p+yz p C. h=+z Р D. h=p+pz E. None of the above
Transcribed Image Text:O A O B D The hydrostatic equation is used to predict pressure variation in a fluid with constant density. Piezometric head, h, a property that is widely used in fluid mechanics, characterizes hydrostatic equilibrium. When hydrostatic equilibrium prevails in a body of fluid of constant density, then h will be constant at all location. Which of the following represents the concept of piezometric head. p A. h = =+z Y B. h=p+yz p C. h=+z Р D. h=p+pz E. None of the above
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