The most common are quartz (SiO¬¬ ) and lithium tantalate ( )‚ and to a lesser degree‚ lithium niobate( ).Each material has specific advantages and disadvantages‚ which include cost‚ temperature dependence‚ attenuation‚ and propagation velocity. Table I lists some relevant specifications for each material‚ including
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Lab 1: Flame Test 11 Chemistry‚ university Preparation Conducted: September 20th‚ 2010 Purpose: To observe‚ and create a chart of the colours produced when solutions of known metal compounds are heated to high temperature. Question: What colours are produced when different metallic compounds are placed in a flame‚ and why this happens? Hypothesis/Prediction: Different salts will produce different colours when placed in a flame‚ due to the fact that each element has a different
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other third-party companies‚ demonstrate that Segway continues to challenge the assumptions and expand the boundaries of traditional transportation. For Consumers You can choose between the versatile and sleek flagship model‚ the Segway i2 with lithium-ion batteries standard); the Segway x2‚ or six different fully equipped packages tailored to such uses as commuting and golf. The Segway i2 is a great way to enjoy the ride while commuting to work‚ running errands‚ or just traveling a short distance
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as the modern version of the general. The only enhancement in that is that the electrolyte is mixed with a little more elements with makes the akyline in the battery stronger. Also there is the Duracell battery which is made out of Akayline‚ and Lithium. Which is the one best battery that I am testing. The final and last battery I am testing is the Rayovac which has quite a interesting history. Did you know that a Rayovac battey company used to make two of the batteries that I am testing. Such as
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along with the lead is made of titanium or titanium alloy‚ but the lead is further insulated by a polymer. The circuitry or all the electrical wires are usually made of modified silicon semiconductors and the battery used in a pacemaker is commonly a lithium-ion battery.
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Sodium was first discovered by Sir Humphrey Davy in 1807. This element is the 11th element found on the periodic table; located in group 1 and period 3. Its chemical symbol is Na and it is classified as a metal. Metals‚ by definition‚ means that they are elements that are luster‚ lose electrons very easily‚ malleable‚ ductile‚ and are great conductors of heat and electricity. Sodium is found in group 1 of the periodic table because the electronegativity of sodium is very low. This allows it to form
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Nanotechnology in the Army Name: College: Course: Tutor: Date: Nanotechnology in the Army Nanomaterials can be designed at the atomic level‚ lending more control over their properties‚ and making them better suited to their desired purpose. Most nanomaterials derive their enhanced abilities from the large increase in surface area that results when individual particle-size decreases. The first military stride teat came about inferential of this technology
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We performed two procedures in which we reduced methyl acetoacetate. For the first procedure we produced a racemic mixture of Methyl (S)-3-Hydroxyacetate and Methyl (R)-3-Hydroxyacetate. For the second we produced only one of the enantiomer products depending on which enantiomer of Tartaric Acid was used. A reduction is a reaction which generally means adding more carbon-hydrogen bonds to a compound. In a reduction reaction the oxidation number of a carbon atom decreases. The opposite is an oxidation
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sometimes act like passengers boarding a bus) with the Electron Configuration Gizmo™. To begin‚ check that Lithium is selected on the PERIODIC TABLE tab. 1. The atomic number is equal to the number of protons in an atom. How many protons are in a lithium atom? ________3_____ 2. A neutral atom has the same number of electrons and protons. How many electrons are in a neutral lithium atom? ______3_______ 3. Select the ELECTRON CONFIGURATION tab. Click twice in the 1s box at upper left and
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“Iron Mike” Webster labored in football like a possessed man‚ he had great work ethic on the field. He always showed great power during games for his fans who all saw him as a local superhero. He played as a center on the Steelers for fifteen seasons from the 1970’s to the 1980’s. He helped his team through four super bowls and his exploits made him a candidate for a football hall of famer. That’s exactly what he became after showing multiple examples of courage like his own personal hero John Wayne
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