Problem Does temperature affect the resistivity of different sized copper wires? Hypothesis I think that the resistivity will increase with higher temperatures because with higher temperature‚ resistivity is higher due to the fact the atomic lattice structure increases. Background Electrical resistivity is the measurement of how a material opposes the flow of an electrical current. On the other hand‚ electrical conductivity () is the inverse of resistivity. It is the measurement
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RECENT TRENDZ IN POWER GENERATION POWER GENERATION FROM ROAD SPEED BREAKER AND FROM SHOES (Recent way to produce power) ABSTRACT: Man in his lifetime‚ uses energy in one form or the other. In fact whatever happens in nature‚ results‚ out of the conversion of energy in one form or the other? The blowing of the wind‚ the formation of the clouds and the flow of water are a few examples that stand testimony to this fact. Of late‚ erratic and perfunctory usage
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In Reaction 1‚ the mass of the pre-cut copper wire was measured with watch glass on the analytical balance‚ the mass was recorded using as many significant figures as possible on Table 2. The copper wire was bended into a circle and laid flat on the bottom of the 250 mL beaker. Inside the fume hood‚ 4mL 16M of HNO3 was added into the 250mL beaker that contained the copper wire. The copper wire was completely dissolved by swirling the beaker. The observation was recorded in Table 3. For Reaction 2
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and analysis of social issues including urban decay‚ class‚ gender‚ sexuality‚ employment‚ belonging‚ globalization‚ power‚ bureaucracy‚ education and‚ of course‚ race” (Penfold-Mounce et al. 154). With the abundance of social issues included in The Wire‚ some may find it surprising how there is still room for a “vast and complex social network” of characters (Potter198). The show switches the narrative point-of-view often between the police‚ politicians‚ drug dealers‚ corner kids‚ teachers and other
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11th D Flame Test Intro: The flame test is a procedure used by chemists to identify the presence of specified metal ions‚ based on the color the flame that appears along with it when it ’s heated. Our flame test was in lab class‚ where the main aim was to tested different solid metals in the flame in order to observe the wide variety of colors those chemicals also sometimes compounds (by mixing them) they produced‚ the second one was to identify unknown metals based on their flame color
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In episode 3 of The Wire‚ there are a lot of characters that seem to know nothing more than selling drugs and making money. However‚ in this scene starting at 10:41 and ending at 12:41 shows that these characters are bit more complex and two sided than we are shown. This scene starts with a very fast pan of the pit area until the camera finds D’Angelo. This pan of the courtyard shows how unsafe it is‚ and how the characters are being watched and how they should watch their backs. The pan of the
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place in her constructed environment and thus is unable to successfully connect to larger society. To fulfil her desire to belong she surrounds her cottage with barbed wire. The close up shot of the wire illustrates to the audience that extreme actions are undertaken to create an atmosphere in which she can belong. The barbed wire indicates that intruders aren’t allowed to enter her surroundings as they could severely impair her sense of place‚ thus highlighting that indeed belonging and place are
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mL beaker Bunsen burner Nichrome wire Barium Nitrate Copper Nitrate Strontium Nitrate Lithium Nitrate Potassium Nitrate Sodium Chloride Calcium Nitrate Unknown solutions A‚B‚ & C Hydrochloric Acid Wash bottle (with distilled water) Procedure: 1. Label the test tubes with the names of the solutions and unknowns. 2. Place about 5 mL of each solution into each test tube‚ and 10 mL of Hydrochloric Acid into the 50 mL beaker. 3. Clean the Nichrome wire before each test. To do this‚ rinse
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The Global Sourcing Wire‚ pg. 805 1. Original Wire Quote: * Unit Price = $30 * Packing Costs = $0.75 per unit * Tooling = $6‚000 one-time fixed charge * Freight Cost = $5.20 per hundred pounds Yearly Unit Cost = ((monthly demand*12) * (unit cost + packaging cost)) + tooling charge Yearly Unit Cost = ((60000)*(30+.75)) + 6000 Yearly Unit Cost = (60000*30.75) + 6000 = $1‚851‚000 Yearly Unit Cost = $1‚851‚000 Unit Cost = Yearly Unit Cost / Yearly Demand Unit Cost
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Daniel Osherow ENGR 1301 5 December 2012 Copper Wire Sizes (EE) The diameter of a copper wire is measured by using a system called the American Wire Gauge also known as AWG. This system has predominantly been used in the United States and Canada since 1857. Using this measurement the cross-sectional area of a gauge is able to be found. We then use this area to determine the wires current carrying capacity. The gauge numbers for wire and diameter values work inversely‚ as when one increases the
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