a. Use the data given to calculate annual returns for Bartman‚ Reynolds‚ and the Market Index‚ and then calculate average returns over the five-year period. (Hint: Remember‚ returns are calculated by subtracting the beginning price from the ending price to get the capital gain or loss‚ adding the dividend to the capital gain or loss‚ and dividing the result by the beginning price. Assume that dividends are already included in the index. Also‚ you cannot calculate the rate of return for 2005
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the parts of the core. (c) Find the current i in the coil to produce a flux (φ=0.012Wb). 2. A circular ring of magnetic material has a mean length of 1.0 m and a cross-sectional area of 0.001 m2. A saw cut of 5 mm width is made in the ring. Calculate the magnetizing current required to produce a flux of 1.0 mWb in the air-gap if the ring is wound uniformly with a coil of 200 turns. Take relative permeability of the ring material =500 and neglect leakage and fringing. 3. A ring of mean diameter
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used to lift a load of mass 2 kg a height of 1.5 m. It uses 50 J of energy when it does this. i) Calculate the amount of potential energy gained by the load using the formula: Ep = mgh where Ep is the potential energy gained m is the mass of the load in kg g is the acceleration due to gravity (9.8 ms-2) h is the vertical distance moved by the load ii) Now calculate the efficiency of the winch. 3 Solar cells are used to provide electrical energy for a water
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The only force is gravity. Plug and Chug 1-5 1. Calculate the resultant velocity of an airplane that normally flies at 200 km/h if it encounters a 50 km/h tailwind. If it encounters a 50 km/h headwind? 200+50=250km/h 200-50=150km/h 2. Calculate the resultant of the pair of velocities 100km/h north and 75 km/h south. Calculate the resultant if both of the velocities are directed north. 100+75=175km/h 100-75=25km/h 3. Calculate the magnitude of the resultant of a pair of 100 km/h
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placed in the cup was _____100_______ mL. Assume that the density of water is 1.0 g/mL. What is the weight in grams of the liquid water? Yes‚ because the density of water is 1 2. Calculate the temperature change. 47.3-4=43.5 3. Knowing that the specific heat of water is 4.184 J/g°C‚ calculate the total amount of heat released by the 100 ml of water as it cooled. This energy was used to melt the ice and then raise the temperature of the melted ice from 0 °C to the minimum temperature
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reactant. 2. To calculate the number of moles of each reactant. 3. To predict which reactant is in excess. 4. To use drawings to relate microscopic events‚ to write a chemical equation that represent those microscopic events. 5. To learn how to measure the volume of a liquid using a buret. Prelab Questions: 1. Calculate the number of moles in 2.65g of zinc. 2. Calculate the number of moles of hydrochloric acid in 37.5mL of a 3.00M HCl solution. 3. Calculate how many moles
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BKM CHAPTER 5 1. The Fisher equation tells us that the real interest rate approximately equals the nominal rate minus the inflation rate. Suppose the (expected or realized) inflation rate increases from 3% to 5%. Does the Fisher equation imply that this increase will result in a fall in the real rate of interest? Explain. The Fisher equation relates nominal rates required by investors to real rates required by investors and inflation. You can think about this from two perspectives: i. Ex-ante
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COLLIGATIVE PROPERTIES 1. Calculate the vapor pressure when 10.o mL glycerol (C3H8O3) is added to 500.0 mL water at 500C. At this temperature the vapor pressure of pure water is 92.5 torr and its density is 0.988 g/mL. Density of glycerol is 1.26 g/mL. 2. Calculate the boiling point and freezing point of the solution if 1.00 kg of ethylene glycol (C2H6O2) is added to a car radiator which contains 4450 g water. a. Kb of water = 0.512 oC/m at normal boiling point of 100oC b. Kf of water
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acid in cyclohexane solution required to create a monolayer of the solution on a water surface Calculate the mass of stearic acid required to form the monolayer‚ use it to estimate the thickness of the monolayer (which is related to the length of the stearic acid molecule)‚ and then use the number of carbon atoms in stearic acid to approximate the diameter and then the volume of a carbon atom calculate a value for the Avogadro constant compare your calculated value for the Avogadro constant with
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AS TRANSITION COURSE SUMMER 2012 PART 1: MEASURING AMOUNT OF SUBSTANCE MASS VOLUME MOLAR MASS AVOGADRO [pic] CONCENTRATION ATOM ION MOLECULE COURSE OUTLINE OCR Chemistry A Unit 1 – Autumn Term 2012 • Atoms and Electron Structure • Moles‚ Equations and Acids • Structure and Bonding • Redox‚ Group 2 and Group 7 Unit 1 Exam – January 2013 – 1 hour – 90 UMS – 30% of total Unit 2 – Spring Term 2013 • Basic Concepts
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