Write the primary dimensions of each of the following variables, showing all your work: (a) specific heat at constant pressure cp; (b) specific weight ? g; (c) specific enthalpy h.
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Write the primary dimensions of each of the following variables, showing all your work: (a) specific heat at constant pressure cp; (b) specific weight ? g; (c) specific enthalpy h.
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- Write the primary dimensions of each of the following variables, showing all your work: (a) specific heat at constant pressure cp; (b) specific weight; (c) specific enthalpy h. and (d) specific gas constantFor a venturi meter given below, the volumetric flow rate is defined in terms of the geometrical parameters, the density of working fluid (p), and density of the manometer liquid (pm) as 4. Q = f(D, D2, A2, g, h, Pmv Pr) %3D Write down the balance equations and show your work to end up with an expression for the volumetric flow rate in terms of the variables defined above.A graduate student wants to use van der Waals' equation to express the pressure-volume- temperature relations for a gas. Her project requires a reasonable degree of precision in the p-V-T calculations. Therefore, she made the following experimental measurements with her setup to get an idea of how easy the experiment would be: Temperature, K Pressure, atm Volume, ft'/lb mol 273.1 273.1 200 1.860 1000 0.741 Determine values of constants a and b to be used in van der Waals' equation that best fit the experimental data.
- In the following section, at least 2 to up to 5 answers may be correct. 1) For a fluid, the assumption (simplifying notion) of incompressibility has important consequences: Pascal’s principle: a change of pressure in an enclosed fluid at rest is transmitted undiminished to all points in the fluid. pressure changes are transmitted immediately from one place to another. the speed of sound then is infinite (just within this approximation). pressure becomes unpredictable. none of the above. 2) Archimedes’ principle can be summarized as: an immersed object is buoyed up by a force equal to the weight of the fluid it displaces. a bathtub is fun, and may lead to important physical discoveries regarding the volume of an object and how much water it displaces, and the weight of that amount of water. boats swim because of the work done by sailors. submarines are always doomed. fish swim because they are less heavy than water 3) A…Surface tension is due to uneven molecular attraction between immiscible fluid media and solid surface. Its importance is governed by dimensionless parameter Which of the Inertia force called Weber number given by We = Surface tension force™ following statements are correct? (i) Surface tension becomes important when the length scale L is small such as in ink jet printing, coating of thin film, oxygenation of water by falling rain drops. (ii) 111 Super-hydrophobicity can be achieved by micro/nano texturing of surface such as in lotus leave, butterfly and dragonfly wing. During oil spill in ocean, oil floats and spreads out due to gravity. By conservation of mass, the oil film becomes thinner as it spreads. Finally, the surface tension force becomes important causing the formation of tiny oil droplets. (A) (B) (C) (D) (i) and (ii) (i) and (iii) (ii) and (iii) All of the aboveConsider a pine wood shaft that is 8 ft long and has a diameter of 4 in. 2 What is the volume of the shaft (in ft³)? (Assume the shaft is cylindrical.) x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. ft3 What is the density of pine wood (see table below)? (Enter your answer in kg/m³.) Density, Specific Gravity, and Specific Weight of Some Materials (at room temperature or at the specified temperature) Material Solids Aluminum Asphalt Cement Clay Fireclay Brick Glass (soda lime) Glass (lead) Glass (Pyrex) Iron (cast) Iron (wrought) Paper Steel (mild) Steel (stainless 304) Wood (ash) Wood (mahogany) Wood (oak) Wood (pine) Density (kg/m³) Specific Gravity Specific Weight (N/m³) 26,880 2,740 2,110 1,920 1,000 1,790 @ 100°C 2,470 4,280 2,230 7,210 7,700 @100°C 930 7,830 7,860 690 550 750 430 2.74 2.11 1.92 1.00 1.79 2.47 4.28 2.23 7.21 7.70 0.93 7.83 7.86 0.69 0.55 0.75 0.43 20,700 18,840 9,810 17,560…
- Consider the following equation. All three of the terms in parentheses are dimensionless groups. Because kC is difficult to determine directly, the other variables are measured and kC is calculated from the given equation. What is the estimated value of kC? What are the units of kC? Show your work. The following values were measured: D = 8.0 mm, DAB = 0.475 cm2/s, μ = 1.12 x 10–3 N-s/m2, ρ = 1.00 x 10–3 g/cm3, v = 15.0 m/s. Note: Given Equation attached belowThe density of liquid water at 25 degrees celsius equals 62.2lbs/cube ft. Suppose the KD DF stud at the top of the page weighs 13.35lbs. And suppose the KD DF stud is thrown into a swimming pool, Twater=25 degrees celsius. Based on data would the stud: sink completely, partually. or float completely: You are abducted by aliens and find yourself locked in a large room on some strangeplanet. To pass the time, you decide to do some experiments using a ball-and-chain thatyou find on the floor. You make the following estimates:mBALL 7 kg ,mCHAIN 0.5 kg, and CHAIN 2 m .(a) When you hold the free end of the chain above your head and allow the ball to swinglike a pendulum, you use your wristwatch to measure the period asT 4 s. What is theacceleration due to gravity on this planet?(b) If the ball accidentally hits a wall, how long does it take for this jolt in the chain totravel up to your hand?
- The velocity is usually density, gravity acceleration, diameter, height difference, viscosity and is a function of length. Using the method of repetitive variables and dimensionless required by taking density, gravitational acceleration, and diameter as repetitive variables find the parameters.What should be the surface tension of a liquid if its density, which is 1.44 g/cc, is the same as that of the calibrating liquid? The displacements of the liquid and the calibrating liquid inside the capillary tube are both 0.5 cm. The surface tension of the calibrating liquid is 29.4509 dynes/cm.The mass of a flid stem is 0.311 slu, ts density is 30 l/ft' and the force of gravityis at 31.90 fps". Fin (a) the secfic olume in cm'/g,(b) the specfic weight ke/m', and (c) the total volume in in'. Solve the following problems SYSTEMATICALLY, enclose your final answers in a box, and Please write clearly. Thanks.
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