If the barometric pressure is 75 cm Hg, convert 16 psig: Match each item to a choice: To mm Hg absolute To kPaa To in Hg gage To psia
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- Using Laplace equation figure out how higher than atmospheric pressure is the inner pressure in a drop of water of radius 3 mm interfacing air at atmospheric pressure. Water surface tension 0.072 N/m. Atmospheric pressure 1.01x105 Pa.Please answer only when you are sure and give correct answer Thedensity of an oil at 23°C is 750kg / (m ^ 3) Find its relative density and kinematic viscosity if the dynamic viscosity is 5 * 10 ^ - 3 * kg / m * s .Estimate the capillary depression for mercury in a glass capillary tube 2 mm in diameter. Use σ = 0.514 N/m and θ = 140°. The answer is h=5.9mm (Our subject is FLUID MECHANIC, all I need is a clear solution) thank you
- Give me right solution. Determine the altitude of the atmosphere above sea level in meters if the atmosphere has an absolute pressure of 23 kPa, abs. and the atmospheric pressure at sea level is 101.325 kPa, absolute and temperature of 15 ⁰C. The gas constant of air is 286.9 joule per kilogram per degree kelvin. Assume the condition isisothermal.Taylor number (Ta) is used here to describe the ratio between the inertia effect andthe viscous effect. By applying Buckingham Pi’s Theorem, determine an equation forTa as a function of the radius of inner cylinder (r), cylinder tangential velocity (v),fluid dynamic viscosity (μ), gap distance (L) and fluid density (ρ).Find the Prandtl number of the mercury at 300 K. If the properties of mercury at 300 K are, Density = 13529 kg/m³, Cp= 0.1393 kJ/kgK, dynamic viscosity = 0.1523 × 10-2 Ns/m² and thermal conductivity = 8.540 W/mK .
- Q2) Fill in the blanks with appropriate word(s), for EXKEl of the following; K Specific weight is defined as According to the variation of density with pressure, Nuids may be classified into - Nuids and - Nuids. 3. The approximate number of experiments to evaluate the influence of 3 parameters separately is assuming that 5 experiments are needed for each variable. ¿When viscous resistance is important, -. criteria for similarity is used. S. The center of pressure is defined as - A Hydrostatic forces in a static fluid is the result of the exerted on submerged surfaces. Streamline is defined as Continuity equation represents the d 0, conservation ofQ1 Determine the minimum size of glass tubing that can be used to measure water level, if the capillary rise in the tube is not to exceed 0.3 mm. Take surface tension of water in contact with air as 0.0735 N/m. A U-tube is made up of two capillaries of bores 1.2 m and 2.4 mm respectively. Q2) The tube is held vertical and partially filled liquid of surface tension 0.06 N/m and zero contact angle. If the estimated difference in the level of two menisci is 15 mm, determine the density the liquid. Q10) In measuring the unit energy of a mineral oil (specific gravity = 0.85) by the bubble method, a tube having an internal diameter of 1.5 mm is immersed to depth of 12.5 mm in oil. Air is forced through the tube forming a bubble at the lower end. What magnitude of the unit surface energy will be indicated by a maximum bubble pressure intensity of 150 N/m.The vapor pressure of water above water in a capillary is 99.9% of that above flat water surgace at 80°C. What is the diameter of the capillary? density of water= 0.9718g/cm^3, surface tension of water=62.6mN/m
- Sometimes manometer dimensions have a signifi canteffect. In Fig. containers ( a ) and ( b ) are cylindricaland conditions are such that p a = p b . Derive a formula forthe pressure difference p a - p b when the oil–water interfaceon the right rises a distance ∆ h< h , for ( a ) d << D and ( b ) d=0.15 D . What is the percentage change in the value of ∆ p ?QUESTION: For an atmospheric pressure of 101 kPa (abs) determine the heights in meters of the fluid columns in barometers containing one of the following liquids: (a) mercury (SG = 13.55), (b) water, and (c) ethyl alcohol (SG = 0.79). Do these results support the widespread use of mercury for barometers? Why?A device for measuring liquid viscosity is shown in Fig.P3.177. With the parameters ( ρ , L, H, d ) known, the fl owrate Q is measured and the viscosity calculated, assuming alaminar-fl ow pipe loss from Chap. 6, h f = (32 μ LV )/( ρ gd 2 ).Heat transfer and all other losses are negligible. ( a ) Derivea formula for the viscosity μ of the fl uid. ( b ) Calculate μ forthe case d = 2 mm, ρ = 800 kg/m 3 , L = 95 cm, H = 30 cm, and Q = 760 cm 3 /h. ( c ) What is your guess of the fluid inpart ( b )? ( d ) Verify that the Reynolds number Re d is lessthan 2000 (laminar pipe flow).