Determination of Density Essay Example for Free

Determination of Density Essay Purpose: To determine the densities of aluminum and zinc cylinders Density is the relationship between the mass of an object and its volume. Sometimes density can be easy to sense. If two objects have exactly the same shape and size, the denser one may feel heavier. If their densities are close together, it can be hard to tell the difference. It gets really tough if you are dealing with materials that have very different sizes or very different shapes. The only way to decide the density of an object is to measure its mass and its volume, then divide. Ex. Density= Mass/Volume Procedure: For Aluminum: 1. Weigh the aluminum cylinders individually on the analytical balance to the nearest 0.0001g and record the weights 2. With a vernier caliper, measure the diameter of each cylinder to the nearest 0.01cm and record 3. Again, using the vernier caliper, measure the length of each cylinder to the nearest 0.01cm and record 4. Compute the volume of each cylinder by using the formula V= (3.14d2h)/4 For Zinc: 1. Weigh the zinc cylinders individually on the top loading balance to the nearest 0.01g, and record the weights 2. Place enough water in a 100mL graduated cylinder to cover the object. Record the volume of water to the nearest 0.1mL by reading the bottom of the meniscus 3. Place the zinc cylinder in the graduated cylinder. Read the new volume and determine the volume for each piece of zinc Data: Density of Zinc Mass#1 104.0168gVolume#1 18mLDensity#1 5.7780g/cm3 Mass#2 92.8178gVolume#2 15mLDensity#2 6.1876g/cm3 Mass#3 72.2115gVolume#3 10mLDensity#3 7.2215g/cm3 Mass#4 55.3077gVolume#4 9mLDensity#4 6.1453g/cm3 Mass#5 35.2653gVolume#5 7mLDensity#5 5.0379g/cm3 Average Density 6.079g/cm3 Density of Aluminum Mass#1 26.48gVolume#1 6.28mLDensity#1 4.22g/cm3 Mass#2 21.50gVolume#2 5.01mLDensity#2 4.30g/cm3 Mass#3 17.58gVolume#3 4.14mLDensity#3 4.25g/cm3 Mass#4 13.10gVolume#4 2.92mLDensity#4 4.48g/cm3 Mass#5 8.68gVolume#5 2.04mLDensity#5 4.25g/cm3 Diameter = 1.025cm Average Density 4.29g/cm3 Conclusions: The densities of both objects were successfully determined. The average density of the aluminum cylinders was 4.29g/cm3, and the density of the zinc cylinders was 6.079g/cm3. Both of these values seem reasonable, and the zinc seems to be slightly heavier than the aluminum. The density of the zinc cylinders was found using the volume by displacement method, and the volume of the aluminum cylinders was found by the formula method V= (3.14d2h)/4. Problems with the equipment may have possibly introduced error into the measurements. The 100mL graduated cylinder used to find the volume of the zinc cylinders was only marked in 10mL increments, requiring estimation for levels in between. The volume of the aluminum cylinders required the use of the vernier caliper to measure the diameter and the length of each cylinder. Improper use of the vernier caliper may have altered the measurements received for the aluminum cylinders. The error introduced by these problems was slight, however, and the calculated densities for both objects are probably quite reliable.

Van Gogh failure Essay -- Essays Papers

Van Gogh failure In the realm of art there have been numerous accounts of infamous artists who have stood out in their art period, such as Goya, Monet and Picasso. One artist who stood out during his art period was Vincent van Gogh, not only for his artwork but also because of his tragic life. Vincent van Gogh is now a world-renowned painter who was born on March 30th, 1853. He was born in Groot Zundert in North Brabant and was the son of Theodorus van Gogh. His art is considered to be part of the expressionism era and his most famous art works include Starry Night, Sun Flowers and The Mulberry Tree. But though he has had much love, admiration and popularity after his death, van Gogh could be considered a failure during his life, for he could not have any type of stable relationship with anyone. He failed to get along with other people including other artists, failed to have a stable relationship with his family and also failed in having any type of successful love relationships. Although an artist should be able to be at peace with his/her surroundings, van Gogh could never blend in with society nor could he get along with other artists. As a young man, his peers did not accept Vincent: â€Å"in the class of Mr. Bokma he certainly was the most advanced, but he does not feel at home at the school, he is ‘like a fish out of water’ he says, and is ridiculed for is peculiarities in dress and manners.† (48). Van Gogh was uncomfortable in his surroundings at Brussel, a school for teaching religion, and was mocked by his classmates because his attire was disagreeable to their taste. As he matured as a man, he still was unable to get along with other people: â€Å"Acquaintances, and relatives are shocked to see him walk about with such a slovenly woman; nobody cares to associate with him any longer and his home life is such that nobody come to visit him.† (56) Many people disagreed or disliked the fact that he was involved with a woman , who was â€Å"such a slovenly woman†, and so they never cared to visit Vincent anymore or have any association with him any longer. Even as an artist, van Gogh could not even get along with other artists let alone society as a whole: â€Å" Vincent and I simply cannot live together in peace, in consequence of incompatibility of temper, and he as well as I, we need quiet for our work.†(73). This quote was from a letter from G... ...d he has also drawn a portrait of her (which seems to have been lost), but the thought of a more intimate relation did not occur to her, and when Vincent spoke to her at last about his love, a very decided no was the immediate reply†(54). Once again as Vincent gathered his courage to express his love, but again denied. Lastly, Vincent failed again to establish a love relationship with a woman named Kee, who entered into his life when he lived in Holland. His method, which he followed to win her heart, was, â€Å"to love her so long, that she’ll love me in the end†(130). But in the end she never loved Vincent and once again Vincent was left alone. In all of his attempts, Vincent had failed in all his adventures to develop any type of love relationships. For a world-renowned artist, Vincent van Gogh led a life of failure. He failed in almost to get along with people in society. He failed to have a healthy and balanced l relationship with his family. Lastly he had failed in any type of love interest, for a number of women who entered his life. Love, admiration and popularity simply was not a life that Vincent van Gogh had lead, instead one of heartache, solitude and rejection.

United States Dollar and Arbitrage Opportunity

5 Questions 2. What is the difference between the retail or client market and the wholesale or interbank market for foreign exchange? 3. Who are the market participants in the foreign exchange market? 5. What is meant by a currency trading at a discount or at a premium in the forward market? 6. Why does most interbank currency trading worldwide involve the U. S. dollar? 7. Banks find it necessary to accommodate their clients’ needs to buy or sell FX forward, in many instances for hedging purposes.How can the bank eliminate the currency exposure it has created for itself by accommodating a client’s forward transaction? 8. A CD/$ bank trader is currently quoting a small figure bid-ask of 35-40, when the rest of the market is trading at CD1. 3436-CD1. 3441. What is implied about the trader’s beliefs by his prices? 9. What is triangular arbitrage? What is a condition that will give rise to a triangular arbitrage opportunity? Problems 1. Using the American term quote s from Exhibit 5. , calculate a cross-rate matrix for the euro, Swiss franc, Japanese yen, and the British pound so that the resulting triangular matrix is similar to the portion above the diagonal in Exhibit 5. 6. 4. Restate the following one-, three-, and six-month outright forward European term bid-ask quotes in forward points. Spot1. 3431-1. 3436 One-Month1. 3432-1. 3442 Three-Month1. 3448-1. 3463 Six-Month1. 3488-1. 3508 8. A bank is quoting the following exchange rates against the dollar for the Swiss franc and the Australian dollar: SFr/$ = 1. 5960-70 A$/$ = 1. 7225-35An Australian firm asks the bank for an A$/SFr quote. What cross-rate would the bank quote? 9. Given the following information, what are the NZD/SGD currency against currency bid-ask quotations? American TermsEuropean Terms Bank QuotationsBidAskBidAsk New Zealand dollar . 7265 . 72721. 37511. 3765 Singapore dollar . 6135 . 61401. 62871. 6300 10. Doug Bernard specializes in cross-rate arbitrage. He notices the fo llowing quotes: Swiss franc/dollar = SFr1. 5971? $ Australian dollar/U. S. dollar = A$1. 8215/$ Australian dollar/Swiss franc = A$1. 1440/SFrIgnoring transaction costs, does Doug Bernard have an arbitrage opportunity based on these quotes? If there is an arbitrage opportunity, what steps would he take to make an arbitrage profit, and how would he profit if he has $1,000,000 available for this purpose. 11. Assume you are a trader with Deutsche Bank. From the quote screen on your computer terminal, you notice that Dresdner Bank is quoting â‚ ¬0. 7627/$1. 00 and Credit Suisse is offering SF1. 1806/$1. 00. You learn that UBS is making a direct market between the Swiss franc and the euro, with a current â‚ ¬/SF quote of . 6395.Show how you can make a triangular arbitrage profit by trading at these prices. (Ignore bid-ask spreads for this problem. ) Assume you have $5,000,000 with which to conduct the arbitrage. What happens if you initially sell dollars for Swiss francs? What â‚ ¬/SF price will eliminate triangular arbitrage? Operations Management Assignment 1 Due Date:1 April 2013 Q1. David Upton is president of Upton Manufacturing, a producer of Go-Kart tires. Upton makes 1000 tires per day with the following resources: Labor: 400 hours per day @ 12. 5 per hour Raw material: 20000 pounds per day @ $1 per poundEnergy: $5000 per day Capital cost: $10000 per day (a) What is the labor productivity per labor-hour for these tires at Upton Manufacturing? (b) What is the multifactor productivity for these tires at Upton Manufacturing? (c) What is the multifactor productivity if Upton can reduce the energy bill by $1000 per day without cutting production or changing any other inputs? Q2. The monthly sales for Telco Batteries, Inc. were as follows: Month Sales Jan 20 Feb 21 Mar 15 Apr 14 May 13 June 16 July 17 Aug 18 Sep 20 Oct 20 Nov 21 Dec 23 Forecast January Sales using each of the following: ) A 3 – month moving average b) A 6 – month weighted a verage using 0. 1, 0. 1, 0. 1, 0. 2, 0. 2 and 0. 3 with the heaviest weights applied to the most recent months. c) Exponential smoothing using an ? = 0. 3 and a September forecast of 18 d) A trend projection With the data given, which method would allow you to forecast next March sales? Q3. Income at the law firm Smith and Wesson for he period February to July was as follows: Month Feb Mar Apr May June July Income 70. 0 68. 5 64. 8 71. 7 71. 3 72. 8 (a) Use trend-adjusted exponential smoothing to forecast the law firm’s Aug income.Assume that the initial forecast for February is $65000, and the initial trend adjustment is 0. The smoothing constant selected are ? =0. 1, and ? = 0. 2. (b) Resolve the problem with ? =0. 1, and ? = 0. 8. (c) Compute the MAD and MAPE. Which forecasting, part (a) and part (b) performs better? Why? Q4. Attendance at Los Angeles’s newest Disneylike attraction, Vacation World, has been as follows: Quarter/year 2007 2008 2009 Winter 73 65 89 Spr ing 104 82 146 Summer 168 124 205 Fall 74 52 98 Compute seasonal indices using all of the data. United States Dollar and Arbitrage Opportunity 5 Questions 2. What is the difference between the retail or client market and the wholesale or interbank market for foreign exchange? 3. Who are the market participants in the foreign exchange market? 5. What is meant by a currency trading at a discount or at a premium in the forward market? 6. Why does most interbank currency trading worldwide involve the U. S. dollar? 7. Banks find it necessary to accommodate their clients’ needs to buy or sell FX forward, in many instances for hedging purposes.How can the bank eliminate the currency exposure it has created for itself by accommodating a client’s forward transaction? 8. A CD/$ bank trader is currently quoting a small figure bid-ask of 35-40, when the rest of the market is trading at CD1. 3436-CD1. 3441. What is implied about the trader’s beliefs by his prices? 9. What is triangular arbitrage? What is a condition that will give rise to a triangular arbitrage opportunity? Problems 1. Using the American term quote s from Exhibit 5. , calculate a cross-rate matrix for the euro, Swiss franc, Japanese yen, and the British pound so that the resulting triangular matrix is similar to the portion above the diagonal in Exhibit 5. 6. 4. Restate the following one-, three-, and six-month outright forward European term bid-ask quotes in forward points. Spot1. 3431-1. 3436 One-Month1. 3432-1. 3442 Three-Month1. 3448-1. 3463 Six-Month1. 3488-1. 3508 8. A bank is quoting the following exchange rates against the dollar for the Swiss franc and the Australian dollar: SFr/$ = 1. 5960-70 A$/$ = 1. 7225-35An Australian firm asks the bank for an A$/SFr quote. What cross-rate would the bank quote? 9. Given the following information, what are the NZD/SGD currency against currency bid-ask quotations? American TermsEuropean Terms Bank QuotationsBidAskBidAsk New Zealand dollar . 7265 . 72721. 37511. 3765 Singapore dollar . 6135 . 61401. 62871. 6300 10. Doug Bernard specializes in cross-rate arbitrage. He notices the fo llowing quotes: Swiss franc/dollar = SFr1. 5971? $ Australian dollar/U. S. dollar = A$1. 8215/$ Australian dollar/Swiss franc = A$1. 1440/SFrIgnoring transaction costs, does Doug Bernard have an arbitrage opportunity based on these quotes? If there is an arbitrage opportunity, what steps would he take to make an arbitrage profit, and how would he profit if he has $1,000,000 available for this purpose. 11. Assume you are a trader with Deutsche Bank. From the quote screen on your computer terminal, you notice that Dresdner Bank is quoting â‚ ¬0. 7627/$1. 00 and Credit Suisse is offering SF1. 1806/$1. 00. You learn that UBS is making a direct market between the Swiss franc and the euro, with a current â‚ ¬/SF quote of . 6395.Show how you can make a triangular arbitrage profit by trading at these prices. (Ignore bid-ask spreads for this problem. ) Assume you have $5,000,000 with which to conduct the arbitrage. What happens if you initially sell dollars for Swiss francs? What â‚ ¬/SF price will eliminate triangular arbitrage? Operations Management Assignment 1 Due Date:1 April 2013 Q1. David Upton is president of Upton Manufacturing, a producer of Go-Kart tires. Upton makes 1000 tires per day with the following resources: Labor: 400 hours per day @ 12. 5 per hour Raw material: 20000 pounds per day @ $1 per poundEnergy: $5000 per day Capital cost: $10000 per day (a) What is the labor productivity per labor-hour for these tires at Upton Manufacturing? (b) What is the multifactor productivity for these tires at Upton Manufacturing? (c) What is the multifactor productivity if Upton can reduce the energy bill by $1000 per day without cutting production or changing any other inputs? Q2. The monthly sales for Telco Batteries, Inc. were as follows: Month Sales Jan 20 Feb 21 Mar 15 Apr 14 May 13 June 16 July 17 Aug 18 Sep 20 Oct 20 Nov 21 Dec 23 Forecast January Sales using each of the following: ) A 3 – month moving average b) A 6 – month weighted a verage using 0. 1, 0. 1, 0. 1, 0. 2, 0. 2 and 0. 3 with the heaviest weights applied to the most recent months. c) Exponential smoothing using an ? = 0. 3 and a September forecast of 18 d) A trend projection With the data given, which method would allow you to forecast next March sales? Q3. Income at the law firm Smith and Wesson for he period February to July was as follows: Month Feb Mar Apr May June July Income 70. 0 68. 5 64. 8 71. 7 71. 3 72. 8 (a) Use trend-adjusted exponential smoothing to forecast the law firm’s Aug income.Assume that the initial forecast for February is $65000, and the initial trend adjustment is 0. The smoothing constant selected are ? =0. 1, and ? = 0. 2. (b) Resolve the problem with ? =0. 1, and ? = 0. 8. (c) Compute the MAD and MAPE. Which forecasting, part (a) and part (b) performs better? Why? Q4. Attendance at Los Angeles’s newest Disneylike attraction, Vacation World, has been as follows: Quarter/year 2007 2008 2009 Winter 73 65 89 Spr ing 104 82 146 Summer 168 124 205 Fall 74 52 98 Compute seasonal indices using all of the data.

What is Sophism in Rhetoric

A plausible but fallacious argument, or deceptive argumentation in general. In rhetorical studies, sophism refers to the argumentative strategies practiced and taught by the Sophists. Etymology: From the Greek, wise, clever Examples and Observations: When a false argument puts on the appearance of a true one, then it is properly called a sophism or fallacy.(Isaac Watts, Logic, or The Right Use of Reason in the Enquiry After Truth, 1724)It is too often that sophism is mistaken for sheer falseness, or even more annoying, for paradox. . . . When logical incorrectness . . . is aimed at deceiving we are dealing with a sophism (abuse of intelligence).(Henri Wald, Introduction to Dialectical Logic. John Benjamins, 1975) Sophism in Ancient Greece Because of their developed ability to argue either side of a case, the Sophists students were powerful contestants in the popular debating contests of their day, and also were highly successful advocates in court. The dialectical method was employed in part because the Sophists accepted the notion of dissoi logoi or contradictory arguments. That is, Sophists believed that strong arguments could be produced for or against any claim. . . . [W]e should note that Western culture has come closer to following the argumentative model set out by Sophists like Protagoras and Gorgias in the actual conduct of its affairs than that suggested by Plato of seeking the truth by means of philosophical inquiry. (James A. Herrick, The History and Theory of Rhetoric. Allyn and Bacon, 2001)Sophism was not a school of thought. The thinkers who came to be called Sophists held a wide variety of views on most subjects. Even when we find some common elements in Sophism generally, there are exceptions to most of these generalizations. (Don E. Marietta, Introduction to Ancient Philosophy. M.E. Sharpe, 1998) Contemporary Sophism - What we find in both ancient Sophism and contemporary Sophistic rhetoric is a basic faith in civic humanism and a pragmatic approach to civic life. [Jasper] Neel, in Aristotles Voice [1994], however, points out that the contemporary Sophistic movement is not dependent on what the ancient Sophists may or may not have believed or taught. Rather, Neel argues, contemporary Sophism should inhabit the (human) discourse that Plato and Aristotle excluded under the name of Sophistry, regardless of whether that excluded and debased discourse correctly reproduces what anyone else in ancient Athens may have advocated (190). In other words, the mission of contemporary Sophism is not to figure out what the ancient Sophists believed and practiced, but rather to develop concepts that allow us to turn away from the absolutism of Western philosophy.Contemporary sophism, however, has been mainly occupied with the historical restoration of Sophistic beliefs and practices, using concepts from postmoder nism to patch together and flesh out a coherent Sophistic perspective. (Richard D. Johnson-Sheehan, Sophistic Rhetoric. Theorizing Composition: A Critical Sourcebook of Theory And Scholarship in Contemporary Composition Studies, ed. by Mary Lynch Kennedy. IAP, 1998)- In using the term sophist in my title I am not being insulting. Both Derrida and Foucault have argued in their writings on philosophy and culture that ancient sophism was a more significant critical strategy against Platonism, the hidden core in both of their views for philosophys suspect impulses, than traditional academics fully appreciate. But, more important, each makes an appeal to sophistic strategies in his own writing. (Robert DAmico, Contemporary Continental Philosophy. Westview Press, 1999) The Lazy Sophism: Determinism I knew an old man who had been an officer in the First World War. He told me that one of his problems had been to get men to wear their helmets when they were at risk from enemy fire. Their argument was in terms of a bullet having your number on it. If a bullet had your number on it, then there was no point in taking precautions, for it was going to kill you. On the other hand, if no bullet had your number on it, then you were safe for another day, and did not need to wear the cumbersome and uncomfortable helmet.The argument is sometimes called the lazy sophism. . . .Doing nothing--failing to put on a helmet, putting on an orange shawl and saying Om--represents a choice. To have your choosing modules set by the lazy sophism is to be disposed toward this kind of choice. (Simon Blackburn, Think: A Compelling Introduction to Philosophy. Oxford University Press, 1999)