“ A penny for your thoughts” is a saying that isn’t commonly used in my generation‚ but the saying might go away because the government is thinking about taking the penny away. Many people believe the penny is worthless and should be removed‚ and they are right. The penny today rarely gets used and costs more to create the penny then its value. Have you ever looked into a wishing well? Well if you have you would have noticed that people only really throw pennies into the well. Many people only
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Lab #2 Determination of Density Britney Williams Chemistry 121 Dr. Yu 1/29/13 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
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Which is more important- talent or determination? In the movie GATTACA‚ Vincent is part of a minority- those whose genes have not been manipulated before birth. He is known as an invalid. He has a heart problem‚ and a short life expectancy. With constant genetic testing in the workplace‚ and genetics playing such a huge role in his life‚ it will be difficult Vincent to get ahead. He dreams of space travel‚ but it seems unlikely for him. His brother Anton‚ however‚ who is a valid‚ or someone whose
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Determination of KHP – Acid - Base Titration For determining purity of unknown KHP‚ acid – base titration was used. Molarity of titrant in this case NaOH was standardized as 0.04958(±0.00011) M. Purity of unknown KHP was calculated as 35.88(±0.16) %. • Introduction Acid – base titration is typical method of determining unknown figures. Acid – base titration means that by using neutralization between acid and base. Abrupt changing of pH says whether procedure is done or not. pH indicators
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Study Guide #2 Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Perception is a process by which a. environmental stimuli are sensed. b. sensations are assembled into meaningful patterns that represent external events. c. sensations and experiences are stored permanently in the brain. d. many different forms of stimulus energy are converted into electrical signals for use by the nervous system. ____ 2. Figure and ground can
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The theory that best applies to my behavior change‚ is the self determination theory. The self determination theory looks at motivation and personality and combines aspects of behavioral self regulation as well as personality development (Ryan & Deci‚ 2000). It takes into account the psychological needs of the person‚ and also looks at a combination of these factors in order to determine the type of motivation a person has. According to Ryan and Deci‚ there are three needs that need to be met for
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Imagine a world without the penny. No more happy children who think good luck will come their way when they find a penny heads up on the ground. No pennies around to make that old tin cup clink and brighten the day of some desperate homeless man. Charities‚ instead of thriving‚ would suffer due to penniless penny drives. Jobs would be lost due to the lower demand for zinc that could be mined and produced into American money. Most importantly‚ a significant part of history would be thrown away and
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Based on the class data‚ the density of the penny changed dramatically between 1980 and 1985. From 1975 to 1980‚ the penny became 1.40g/mL less dense and from 1980 to 1985‚ the density dropped by 0.626. With this data and the percent composition equation we were able to determine that the second metal in the penny is Zinc with a density of 7.14g/mL. Using scholarly online sources‚ I was able to confirm this data concerning the second metal to be correct. The United States Mint’s website states that
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determine the % composition of a modern (post-1982) penny by using a strong acid called nitric acid (HNO3)‚ to react and dissolve the zinc core‚ leaving only the copper coating. Once only copper remains‚ we will then compare its’ absorbency to the other five post-1982 penny Cu concentrations made in this lab. INTRODUCTION: Before 1982 the US penny was made of pure copper. Because of the high cost of copper‚ the US government changed the composition of the penny. As of 1982‚ pennies have been made
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continually shows us his determination. Pip had fallen for a girl who was in a higher class than himself. He was determined to learn to read and dress of a higher class so that he could impress Estella‚ Miss Havisham’s adopted daughter. Estella was a rude upper-class woman who continually demeaned Pip. Through all the offensive remarks made towards him‚ he still stopped at nothing to impress her and win her heart. He was a very hard-working man‚ and through his hard work and determination‚ he became wealthy
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