Module EG1083 Fluid Mechanics PRESSURE ‚ FLUID SYSTEMS and FLUID PRESSURES SM(1) Pressure Definition of Pressure Fluid pressure: Force per unit area exerted by a fluid in a solid wall. Force acts perpendicularly to the surface in contacts. Fluid is a co u d s common word for gas a d/o liquid. o od o and/or qu d Pressure is a scalar quantity. It has the units of: N/m2 or Pa (or kPa) in SI system of units psi in Imperial system of units Pressure can also be expressed in terms of height
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Fadi Antoine Nesbey: Government and politics home work: Distinguish between elitism and pluralism Elitism: is the belief or attitude that some individuals‚ who form an elite or a select group of people with intellect‚ wealth‚ specialized training or experience‚ or other distinctive attributes and are those whose views on a matter are to be taken the most seriously or carry the most weight‚ whose views and/or actions are most likely to be constructive to society as a whole or whose extraordinary
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hypothesis that: Osmosis is dependent on the concentrations of the substances involved. Diffusion is the passage of solute molecules from an area of high concentration to an area of low concentration (Campbell & Reece‚ 2005). An example is ammonia diffusing throughout a room. A solute is one of two components in a chemical solution. The solute is the substance dissolved in the solution. The solvent‚ the other component‚ is any liquid in which the solute can be dissolved (Anderson‚ 2002). Diffusion
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Explainthe relationship between the average cost and marginal cost curve? Answer: We usually assume that the Average Cost curve is U shaped The MC curve will intercept the AC curves at its minimum point. When AC is decreasing‚ MC lies below AC - because when MC is below AC‚ producing an extra unit of output will pull down average cots When AC is increasing‚ MC lies above AC - because when MC is above AC‚ producing an extra unit of output will raise average costs Therefore MC will intercept the
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Relationships with an animal is important to a lot of people for several reasons. An Animal can be the best friend of a person. Kids can learn a lot by having an animal as a pet . Old people need pets to stave off the feelings of loneliness in their homes. Some people keep pets as a hobby or for doing sports. Animals are good for people of all ages. While kids are young they are able to learn‚ especially if they have an animal. They can learn and understand that animals have feelings‚ and how
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The things that count account for this difference between systolic pressure when the sound began‚ the stethoscope user heard it‚ and the computer operator pressed the event marker keystroke is because how fast sound travels. This comes into play because first the person using the stethoscope uses it‚ and he/she is not going to be able to react immediately to inform the computer user. There is a delay when the stethoscope user hears it from when the first sound begins‚ and then there is a delay when
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Pressure Today in our modern society cheating in school is growing at a rapid rate‚ but who is to blame‚ is it the school system is it students or is it the teachers. I strongly believe that it is not only the student’s fault but the school systems as well. To begin‚ cheating among students has rapidly increased. The numbers are crazy; statically 2 out of every 3 kids have cheated on a test‚ homework‚ ect. “Cheating in school is rampant and getting worse 64% of students cheated on a test in the
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Acid –Base Titration: A volume of 128 mL of 0.650 M Ba(OH)2 was required to completely neutralize 50.0 mL of nitric acid solution (HNO3). What is the concentration of the acid solution? Gravimetric Titration: Calculate the molar concentration of Ba2+ ions in a 500.0 mL sample of an unknown aqueous solution if 2.47 g BaSO4 is formed upon the addition of excess Na2SO4? Stoichiometry of Acid –Base Reactions: What volume of 0.800 M HCl is required to completely neutralize 35.0 g of Ca(OH)2
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Effect of Solute Concentration on the Mass of Apples Introduction Background: This lab involves the testing and measuring of water potential. Water potential (ψ) is the tendency of water to diffuse from one region to another. It measures the free energy available in water to do work. Pure water has a water potential of 0 (kpa--unit?). Water will move from an area of higher water potential to an area of lower water potential. Several factors‚ including temperature‚ pressure (ψp) and solute concentration
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different concentrations of sucrose solutions have an effect on the final weight for the potato tubers?” In this experiment we estimated the osmolarity of potato tuber cores by submersing different potato cores into sucrose solutions of 0.0-0.6M‚ and weighing the potato. The results showed the weight of the potato tubers had the highest percent change in weight meaning that they weighed more than the initial weight in sucrose solutions from 0.0-0.3M; it also showed that sucrose concentrations from 0
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