[기계Engineering] 유체역학(6판)(양장) 조강래 역 l McGraw-Hill 해결책(챕터1~2)
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1.2 The earth’s atmosphere can be modeled as a uniform layer of air of thickness 20 km and average density 0.6 kg/m3 (see Table A-6). Use these values to estimate the total mass and total number of molecules of air in the entire atmosphere of the earth.
1.1 A gas at 20°C may be rarefied if it contains less than 1012 molecules per mm3. If Avogadro’s number is 6.023E23 molecules per mole, what air pressure does this represent?
레포트 > 공학,기술계열
The Saybolt Universal Viscometer, now obsolete but still sold in scientific catalogs, measures the kinematic viscosity of lubricants [Mott, p. 40]. A container, held at constant temperature, is filled with 60 ml of fluid. Measure the time t for the fluid to drain from a small hole or short tube in the bottom. This time unit, called Saybolt universal seconds, or SUS, is correlated with kinematic viscosity ν, in centistokes (1 stoke = 1 cm2/s), by the following curve-fit formula:
-ch1~ch2-
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[기계Engineering] 유체역학(6판)(양장) 조강래 역 l McGraw-Hill 해결책
[기계Engineering] 유체역학(6판)(양장) 조강래 역 l McGraw-Hill 해결책(챕터1~2)
[기계공학] 유체역학(6판)(양장) 조강래 역 l McGraw-Hill 솔루션 -ch1~ch2-
1.3 For the triangular element in Fig. P1.3, show that a tilted free liquid surface, in contact with an atmosphere at pressure pa, must undergo shear stress and hence begin to flow.
[기계공학] 유체역학(6판)(양장) 조강래 역 l McGraw-Hill 솔루션
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