Homework 2_1 ECET310 NOISE 1. Assume that a receiver has a first amplifier stage with a 5K input resistance‚ a gain of 300‚ an input audio signal of 20 V‚ and an operating temperature of 27oC. When the amplifier is operating with a bandwidth first of 10 MHz‚ find (a) the rms input noise levels (b) the audio output levels (c) the rms output noise levels PN = noise power in watts Tk = 27°C + 273 = 300°K a) Noise level Pn(in) = KT(k)BW = (1.38x10-23)(300°K)(10MHz) = 41.4 x 10^-15 W
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order ) annual carrying cost per unit = (2)(4 800)($150) $4 = 2 360 000 = 600 Using the formula given for requirement 1: Total annual cost of ordering and storing XL-20 4 800 600 $150 $4 600 2 = $2 400 Note that this cost does not include the actual cost of XL-20 purchases (i.e. the quantity purchased multiplied by the price). 3 Orders per year: Number of orders per year = = annual requiremen t order quantity 4
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The Roman Aqueducts served to bring water to Rome‚ or any other larger cities around Rome. The Aqueducts supplied water to baths‚ fountains‚ and emptied sewers all around the city. The first Roman Aqueduct was constructed in 312BC‚ when Roman was becoming a Republic. This Aqueduct was named the Aqua Appia. The Aqua Appia was constructed using roman concrete‚ and set stone‚ but the Roman’s had a problem. So much materials would have to be gathered to make an Aqueduct of this size. They had to design
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LinA Axial and Radial Broach‚ the LinA XL Radial Broach‚ the LinS Axial Broach‚ the LinA Haas Axial‚ and the LinA EMAG Axial. Charlotte-Gastonia-Rock Hill‚ NC-SC - BENZ Inc. has announced that it will present its LinTec family of broaching tools during Houstex 2015‚ February 24-26‚ at the George R. Brown Convention Center in Houston‚ TX. The company will demonstrate several new LinTec broaching tools‚ including the LinA Axial and Radial Broach‚ the LinA XL Radial Broach‚ the LinS Axial Broach‚ the
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the current investigation was to use sugar cane bagasse ash (SCBA) and to compare its adsorption efficiency with Magnesol XL as synthetic adsorbents to regenerate the quality of fried sunflower oil. In addition‚ to evaluate the effect of water washing process on the quality of fried and fried – treated sunflower oil. The metal patterns of sugar cane bagasse ash and Magnesol XL were determined. Some physical and chemical properties non-fried‚ fried and fried–treated‚ sunflower oil were determined.
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References: Cocoa Bean Exportation. (2010). Retrieved December 9‚ 2010 from http://web.duke.edu/~cz8/chocolate/beans.html Hubbard‚ R. & O’Brien‚ A. (2010). Economics (3rd ed.). Boston‚ MA: Pearson Hall. Retrieved December 12‚ 2010 from EBook. Keystone Marketing Services. (n.d.). How supply and demand determine commodities market prices. Retrieved from http://futures.tradingcharts.com/learning/supply_and_demand.html The Hershey Company - Introducing the World of Chocolate - Part 1. (2008). Retrieved
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Sea otters (Enhydra lutris) are in the order Carnivora and the family Mustelidae. OF all the animals in the family‚ the sea otter is the only one that is completely marine. The others are either land or partially land and partially marine. Like all animals‚ sea otters need to eat to survive and grow. Sea otters are classified as carnivores. One of their choice prey options is the sea urchin. However‚ such is not always the case. According to STUDY 1‚ “ as sea otter numbers increase and the abundance
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There is a lot of basics to survive your freshman year. You have to try to stay on the good said with the seniors. Occasionally‚ the upperclassman will pick on you because you are the youngest in the school. Also‚ try to do your work in the high school. This is not middle school anymore where the teachers just tell you the answers. Starting your freshman year‚ start looking at colleges and what you want to be when you graduate because colleges will look at that with your grades. Don’t think all the
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571 Week 1 Guillermo Furniture Store Concepts Paper.doc FIN 571 Week 2 Individual Assignment Text Problems Set - A1‚A10‚A12‚A14WEEK 2.doc FIN 571 Week 2 Individual Assignment Text Problems Set - B16‚B18‚B20.xls FIN 571 Week 2 Individual Assignment Text Problems Set - C20.xls FIN 571 Week 3 Lawrence Sports Simulation.doc FIN 571 Week 4 Guillermo Furniture Store Analysis.doc FIN 571 Week 4 Guillermo Furniture Store Analysis.xls FIN 571 Week 5 Text Problem Sets Solutions.doc
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over-fishing in the open waters‚ that has led to the destruction of the coastal ecosystems off the coast of western Alaska. 7. List at least two forms of evidence to support the hypothesis that killer whales are preying upon sea otters. 8. A "keystone predator" is one that exerts an important regulating effect on other organisms in the community. Removing
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