The Penny What do you think about the penny? The penny is a coin that is worth one cent. It is made of copper and zinc. Should we keep this coin or get rid of it? The thing is‚ we should get rid of it. We shouldn’t keep the penny because it is worthless‚ wastes time‚ and costs more to produce than it is worth. The penny takes up too much space in many ways. The penny is rarely used and is usually just put or thrown away. “We often store them in jars...” (Sommer). Why do people store them in jars
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Copper vs Fiber They are two major types of cables used in networking‚ copper and fiber. Each cable are used in different application regarding to its usage. They also have different strengths cause of the material they are made of. Copper is the most common out of the two cables. Not as powerful as Fiber‚ but are ideal for buildings up to 100m. Fiber is mostly used for longer distances that copper can’t reach. For example‚ Fiber is ideal for high-rise buildings. Both cables do have their weakness
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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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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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examine the extent to which the temperature and presence of common ions affect the amount of copper sulphate salt that can dissolve in 100 grams of water until it reaches saturation. In order to achieve the aims of this experiment‚ a methodical approach is taken to measure solubility of the salt at three different temperatures and then construct a solubility curve for copper sulphate. Additionally‚ copper sulphate is reacted with sodium hydroxide to investigate further the effect of common ions on
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of the news of savages causing trouble everywhere Jamie received a copper flute as a gift from overseas Jamie sees a spiral of smoke coming from the hills Jamie finds his pet seal shot Chapter 4 Jamie clamours over rocks to find Robert because he was out with Andrew hunting Jamie sees a snow goose and follows it into the woods Jamie meets a native boy by a creek Jamie gives the boy his copper flute; the boy gives Jamie his copper necklace and a salmon Chapter 5 Jamie returns to town and finds everyone
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the offer of picking up a penny off the floor? Well you made a great choice. For the past couple years there has been a huge debate over the ban of pennies. Some people feel as if the penny is useless to our currency‚ but some others felt that the penny plays a huge role in the U.S today. The argument today is whether the ban of pennies is going to boost our economy or plummet it. The penny should be eliminated because of the cost‚ worth‚ and rounding system. The penny to me has never been a huge
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Pennies don’t put in their two cents for their place as a part of American currency. It’s not like they’re particularly useful. Almost nobody picks them up unless it’s in the hope that the face of the long-deceased Abraham Lincoln might bring them good fortune of some odd sort. Thieves don’t scrounge around people’s pockets for pennies‚ and then have the person call the police for their missing penny. When most people say that they want to keep the penny‚ most of the time it will simply be an infantile
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1 Determination of Empirical Formula: Preparation of a Copper Sulphide. Aim The aim of the experiment was to determine the empirical formula of sulphide of copper and to make sure that an amount of copper metal reacted with elemental sulphur‚ Eq. 1. To be able to calculate the empirical formula of copper sulphide‚ the mass (grams) of copper has to be known and the mass (grams) of copper sulphide after the reaction. Copper‚ chemical formula Cu‚ is a known metal with a red-brown
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Copper and Molybdenum Deposits in the United States Copper and molybdenum resources were not recognized as valuable commodities until economic needs demanded the collection and processing of these minerals in large amounts. The most expansive deposits of copper and molybdenum occur in massive low grade ores and are found in intrusive porphyry formations‚ although many smaller sized but higher grade ores are located in non-porphyry areas. The nation has abundant domestic copper ore reserves but
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