Experiment Title: Torsion Vibration. Introduction : Torsion is the twisting of a metallic rod shaped object‚ when a torque is applied on two sides’ perpendicular to the radius of a uniform cross-sectional bar. Objective : Determining the natural frequency of a system undergoing tortional vibration. Theory : Using Newton’s second law of tortional system. ( [pic] …………………. ( Equation 1 ) where Io = mass moment of inertia of the disk Hence‚ [pic] ……..……
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CH213. Physical Chemistry II. Final Exam Your Name: Your Student Number: 110 Normal Points + 10 Bonus Points If you get 110 points out of 120 points‚ you will get the full 40% assigned to the midterm exam. Your scores 1) 2) 3) 4) 5) 6) Total: out of 25 out of 20 out of 20 out of 15 out of 20 out of 20 out of 120 * All the problems are connected. In other words‚ to solve the problem‚ you may need the information and/or answers given in other problems. All necessary information is basically
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COMPUTATIONAL FLUID DYNAMICS (MKM411) Dr. M. Sharifpur mohsen.sharifpur@up.ac.za April 2nd Department of Mechanical and Aeronautical Engineering University of Pretoria 2013 Test 1 Perusal Friday April 5th 12:00 to 14:00 CFD Training Courses The schedule is already posted on clickUP (find your group in the clickUP) ANSYS-FLUENT (Group1) FLoEFD ANSYS-FLUENT (Group2) STAR CCM+ (Group 1) STAR CCM+ (Group 2) April 3rd 9:00-17:00 April 10th 9:00-17:00 April 11th 8:00-10:15 and then 11:30
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The Five Competitive Forces Model In this section‚ the structure of our company will be explained using the five competitive forces model developed by Harvard professor Michael Porter. These forces include: rivalry among existing firms‚ threat of new entrants‚ bargaining power of buyers‚ threat of substitutes and bargaining power of suppliers. Each of these forces will have their own distinctive effect on determining industry profitability. Intensity of rivalry among competitors: Recently there
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WANTED 0.4 Per 100g Reward For the Capture of: NITROGEN Also Known as: StickStoff‚ Nitrogeno‚ A3OT Height 65pm Weight 14.0067 Characteristics Melting Point- (-210 C) Boiling Point- (-195.795 C) State at Room Temp –Gas Density- 1035 (4 K) Colorless Odorless 78% of Air Wanted For At low temperature can result in burns on hands‚ fingers and other areas of body Prisoner Number 7 Captured By: Daniel Rutherford (1772) Other Covalent Radius -0.71 Electron Affinity- not
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CHM130 Lab 4 Calorimetry Name: Mengqi Li Data Table: (12 points) ALUMINUM METAL Pre-weighed Aluminum metal sample mass (mmetal) 50.0 grams Temperature of boiling water and metal sample in the pot (Ti(metal)) dsdfa(Ti 90.0 C Temperature of cool water in the calorimeter prior to adding hot metal sample (Ti(water)) 17.0 C Maximum Temperature of water/metal in calorimeter after mixing (Tf) 47.0 C LEAD METAL Pre-weighed Lead metal sample mass (mmetal) 50.0 grams Temperature of boiling
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Everything has matter. Matter makes up everything in the universe. Matter is anything that has volume or mass. I will be discussing the details of matter and other topics of science. All matter has all four general properties. They are mass‚ weight‚ volume‚ and density. The most important property of matter is mass. Mass is how much stuff‚ or matter‚ there is in any given object. Mass is the reason an object has‚ the second property‚ weight. When gravity pulls on an object it forms the weight. Weight
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Energetics Practical 2: To Determine the Enthalpy Change of a Reaction Background Calcium Carbonate‚ CaCO₃‚ decomposes with heat to form CaO and CO₂. The objective of this practical was to determine the enthalpy change for this reaction by using an indirect method based upon the foundation of Hess’ Law. Both calcium oxide and calcium carbonate react readily with 2 mol/dm3. The reaction can be demonstrated as so: CaCO₃ (s) -> CaO(s) + CO₂ (g) Results: Raw Data Calcium Carbonate Mass of CaCO₃
Free Thermodynamics Enthalpy Calcium carbonate
Loft insulation Loft insulation is needed to save heat energy and contain it within the building. It reduces heat because hot air is lighter than cool air therefore hot air rises. Therefore the hot air that rises will stay at the top. Meanwhile the air below begins to gain heat and in turn rises while the hot air above loses heat and falls. This cycle is called convection. Loft insulation acts like a blanket‚ helping prevent heat escaping through the roof. Insulating your home isn’t a one
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DELTA UNIVERSITY FOR SCIENCE AND TECHNOLOGY FACULTY OF PHARMACY Practical Physics I Fall 2012 [PRACTICAL PHYSICS I] Contents Fall 2012 (1) Fine Measurement Apparatuses --------------------------------------------------------------------------- 2 (2) Determination of the Mechanical Equivalent of Heat (Joule’s Law) by Electrical Method 12 (3) Determination of the Melting Point of a Solid Material ------------------------------------------ 15 (4) Determination of the Specific Gravity
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