suffered by the society. b. Pennies are not worth the time to count or store in the current economic market. c. Pennies result in dead weight transaction in the economy. 2. Are U.S. coins fiat money or commodity money? Other than pennies and nickels‚ U.S. currency today is fiat‚ the face value being substantially more than the value of the metal or paper. 3. Why such a slow recovery? Name the explanations for the slow US recovery John Taylor reject. Explain his reasoning. Slow Recovery - Gap
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Q. 1. During the electrolysis of molten lead bromide‚ which of the following takes place : A : Bromine is released at the cathode. B: Lead is deposited at the anode. C : Bromine ions gain electrons. D: Lead is deposited at the cathode. Ans : - D. Q. 2. Here is an electrode reaction : Cu → Cu2+ + 2e-. [i.e. Cu- 2e- →Cu2+]. At which electrode(anode or cathode) would such a reaction take place. Is this an example of oxidation or reduction. Ans : - At anode. Oxidation. Q. 3. A solution contains
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TOPIC 1: RATES AND CHEMICAL EQUILIBRIUM QUESTION 1: (Taken from the DoE Physical Sciences Feb-March Paper 2 2009) Antacids are used to relieve indigestion. Indigestion is the condition when the stomach produces too much acid resulting in an uncomfortable and painful feeling. A certain antacid tablet dissolves in water and reacts with the acid in the stomach to release carbon dioxide gas. 1.1 Name the type of chemical reaction that explains why antacids bring relief from indigestion
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BORNEO SCIENCE 24: MARCH 2009 GENERATING ELECTRICITY USING PIEZOELECTRIC MATERIAL Jedol Dayou1‚ Man-Sang‚ C.1‚ Dalimin‚ M. N.2 & Wang‚ S.3 School of Science and Technology‚ Universiti Malaysia Sabah‚ 88999 Kota Kinabalu‚ Sabah‚ Malaysia 2 Faculty of Science‚ Art and Heritage‚ Universiti Tun Hussein Onn Malaysia‚ 86400 Parit Raja‚ Batu Pahat‚ Johor‚ Malaysia 3 Intelligent System Design Lab (ISD)‚ School of Information and Mechatronics‚ Gwangju Institute of Science and Technology‚ 1 Orong-dong‚
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Hybrid Cars I have always wondered what Hybrid cars were all about. Especially because over the past couple of years gas prices have been at record highs. I knew that there were such things as electric cars but until this last year or so I have only seen the wealthy be able to afford to drive them. And from what I had heard about Hybrid cars was that they were over priced‚ small‚ and not so attractive cars. No wonder nobody owns them. Now I am starting to see them more often and they aren’t as
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Eudora Welty’s “A Worn Path” is a story that emphasizes the natural symbolism of the surroundings. The main character in the story‚ Phoenix Jackson‚ is an old black woman who seeks out to find medicine for her sick nephew. This story contains a motif‚ which is the continuous walking of Phoenix Jackson throughout her journey. She lives in the pinewoods and faces the challenging experience of walking through the snowy‚ frozen earth to get to the hospital in the city of Natchez
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Bag-CK1 1 Pipet‚ Empty Short Stem‚ Experiment Bag Ionic Reactions 1 Barium Nitrate‚ 0.1 M - 2 mL in Pipet‚ 1 Cobalt (II) Nitrate‚ 0.1 M - 2 mL in Pipet1 Copper (II) Nitrate‚ 0.1 M - 2 mL in Pipet‚ 1 Iron (III) Nitrate‚ 0.1 M - 2.5 mL in Pipet‚ 1 Nickel (II) Nitrate‚ 0.1 M - 2 mL in Pipet‚ 1 Sodium Bicarbonate‚ 0.1 M - 2 mL in‚ Pipet‚ 1 Sodium Carbonate‚ 0.1 M - 2 mL in Pipet‚ 1 Sodium Chloride‚ 0.1 M - 2.5 mL in Pipet‚ 1 Sodium Hydroxide‚ 0.1 M - 2 mL in Pipet‚ 1 Sodium Iodide‚ 0.1 M - 2.5 mL in
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Hypersensitivity ■ Exaggerated responses by an individual to an antigen following a previous exposure ■ Ag-ab reaction – release large quantities of chemicals‚ enzyme‚ and cell stimulators that are damaging to the host. ■ Traditionally classified based on time after exposure to offending antigen ❑ Immediate hypersensitivity – Ab mediated ❑ Delayed hypersensitivity – Cell mediated Types of Hypersensitivity Type I - ANAPHYLACTIC Type
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Flywheel energy storage works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy. The energy is converted back by slowing down the flywheel.Flywheel energy storage system is one form of energy storage devices. It is basically a rechargeable battery. It is used to absorb electric energy from a source‚ store it as kinetic energy of rotation‚ and then deliver it to a load at the appropriate time‚ in the form that meets the load needs
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Shape Memory Metal The goal of the experiment was to heat the shape memory alloy to see if the metal will revert back to its original shape. In order to do so I needed a hair dryer with a low and high setting‚ and a shape memory paperclip. How I went to test this was I took the paper clip‚ straightened it out‚ and then heated the paper clip with the blow dryer. In order to obtain accurate results‚ I needed to do four trials with the blow dryer on the high setting‚ and one trial with the blow
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