goals of these organizations will not be damaged. If we eliminated the penny‚ the next lowest currency would be the nickel. Which in turn would make it much more easier to reach thousand-dollar goals with nickels instead of pennies because nickels are worth five times more than a penny (Sereno 88). Charities and organizations could make easily double of what they would raise if nickels were accepted as the new lowest amount of currency. Another point that Sereno defends is the idea of the rounding
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km Extends from 670-2900 km Hot and plastic‚ 1% or 2% melted Hot‚ under great pressure‚ And brittle High pressure forms minerals different from those of the upper mantle Core Outer core Inner core Iron and nickel Iron and nickel Extends from 2900- 5150 km Extends from 5150 km to the center of the Earth Liquid Solid The rate of pressure increase with depth is called the pressure gradient‚ and depends on the density of the overlying rock. The pressure
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Ammonia then Nickel and Ammonia. In part 2‚ we focused on cobalt ions in the presence of chloride ions as well as the precipitation of silver nitrate and sodium carbonate. In the last part of the experiment we utilized a solution of Cobalt chloride and compared the color at room temperature and then again in a container of boiling water. Physical Data: No physical Data was applicable to the experiment. Chemical Equations: Part i: Changes in Reactant or Product Concentrations A.Copper and Nickel Ions
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A battery‚ which is actually an electric cell‚ is a device that produces electricity from a chemical reaction. In a one cell battery‚ you would find a negative electrode; an electrolyte‚ which conducts ions; a separator‚ also an ion conductor; and a positive electrode. Batteries are made of magnesium dioxide‚ graphite‚ electrolytes‚ zinc oxide and a paper soaked in an electrolyte solution. All of this is sealed in a insulated tube for safety. http://answers.ask.com/consumer_electronics/other/what_are_batteries_made_of
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thermocouple Fig. 19. Typical dependences of tension on the difference of temperature for thermocouples the junctions of which are executed from different materials : 1 is a nickel-chrome/constantan (Е); 2 is iron/constantan (type of J)‚ 3 is a copper/constantan (type of Т); 4 is a nickel-chrome/a nickel-manganese is aluminium-silicon (type of К); 5 platinum-rhodium/platinum (type of R) 6 is platinum-rhodium/platinum (type of S) On a fig. 19 the tensions crooked‚ characterizing
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Dr. Alfred Basta Mat 201 Module 1-Case Assignment Thomas J. Cobb 1. Suppose you have 4 nickels‚ 6 dimes‚ and 4 quarters in your pocket. If you draw a coin randomly from your pocket‚ what is the probability that: a. You will draw a nickel? The probability of someone drawing a dime would be 4/11 or 36%. b. You will draw a dime? The probability of some drawing a nickel would be 6/11 or 54% c. You will draw a quarter? The probability of someone drawing a quarter
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Batteries come in many shapes and sizes. Some are no larger than a pill while others are heavy and huge size‚ but most batteries have one thing in common. They store chemical energy and change it into electrical energy. The cell is the basic unit producing electricity. A battery has 2 or more cells‚ but people often use the world battery when talking about a single cell‚ too‚ like a dry cell. One of the most popular batteries that have a cell is a dime sized battery which we use for watches. Cells
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2011 Minerals Yearbook ZiMbabwe [advance Release] U.S. Department of the Interior U.S. Geological Survey May 2013 Revised August 2013 The Mineral indusTry of ZiMbabwe by Philip m. mobbs as estimated by the international monetary Fund‚ Zimbabwe’s real gross domestic product (GdP) increased by an estimated 9.4% in 2011 compared with that of 2010. The nominal GdP was estimated to be $9.5 billion‚ of which the mining sector accounted for about 12%. Zimbabwe’s diverse mineral output included about
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In Eudora Welty ’s "A Worn Path" the conflict was not apparent at the very beginning. What was a poor‚ elderly sick woman doing gallivanting in the forest during the dead of winter? The reason became clear towards the conclusion of the story as the action revealed that the conflict was obtaining the necessary medicine for her grandson. When this conflict became obvious‚ another question came to mind. What kind of society did this woman live in that she had to go all the way from her home in
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Purpose The purpose of this lab is to identify the different features that come about by using oxidation reduction and recording the observations‚ these tests will help determine the specific qualities each solution has. Hypothesis I theorize that nothing will happen with Magnesium because it is such a soft metal. Zinc should turn a greener color‚ because that’s what happens to a lot of statues and sculptures. I theorize that iron will tarnish badly because in air it can get tarnished so oxidation
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