EXPERIMENT NO-1 AIM- To determine the frequency of A. C. mains by using an electric vibrator. APPARATUS- Electric vibrator‚ table lamp‚ pulley‚ weight box‚ fishing cord‚ a. c. source. THEORY- when a cord of mass per unit length m is connected to the vibrating rod of the vibrator and stretched with a tension T‚ the cord vibrators in segments. If the length of the cord is then adjusted until the nodes are clearly marked‚ the frequency of the stretched string is the same as of the vibrating rod which
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Organizational Issues in the Introduction of New Technologies Ralph Katz and Thomas J. Allen June 1984 1582-84 Organizational Issues in the Introduction of New Technologies by Professor(s) Ralph Katz and Thomas J. Allen More than ever before‚ organizations competing in today ’s world of high technology are faced with the challenges of "dualism"‚ that is‚ functioning efficiently today while planning and innovating effectively for tomorrow. Not only must these organizations
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NANOTECHNOLOGY IN AVIATION Israel Stephen U. Manigandan D. III Yr‚ Aeronautical Excel College Of Engg. & Tech ABSTRACT: In the aerospace industry‚ there is a great need for new materials which exhibit improved mechanical properties. Materials possessing high strength at a reduced mass and size make lighter aircraft with lower fuel consumption. The development of new materials with tailored properties is a primary goal of today’s materials science and engineering. This paper gives us a brief idea
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Bharati Mukherjee‚ one of the leading diaspora writer is noted for her writings based on the themes of expatriation‚ immigration‚ cultural alienation‚ assimilation and multiple displacements. She has written eight novels including short stories and two autobiographies along with her husband‚ Clarke Blaise‚ the Canadian novelist and professor. Her novels can be divided into different phases such as expatriates’ perspective in first two novels‚ The Tigers Daughter (1972) and Wife (1975). Her second
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w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education .c rs om *2925136620* CHEMISTRY Paper 3 (Extended) 0620/33 May/June 2012 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams‚ graphs
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Victorian Certificate of Education 2012 CHEMISTRY Written examination Day Date 2012 Reading time: *.** to *.** (15 minutes) Writing time: *.** to *.** (1 hour 30 minutes) DATA BOOK Directions to students • A question and answer book is provided with this data book. Students are NOT permitted to bring mobile phones and/or any other unauthorised electronic devices into the examination room. © VICTORIAN CURRICULUM AND ASSESSMENT AUTHORITY 2012 2012 CHEM DATA BOOK 2 Table
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1.1 The atoms‚ during bond formation‚ may lose or gain electrons (valence electrons) in order to achieve a stable state‚ or technically speaking‚ a stable electron configuration. Usually metal atoms lose electrons and non-metals gain electrons in order to achieve electron stability. When dealing with bond formation (Ionic bonding for example) we need to analyse the outer shell of the atom. Metals usually present 1‚ 2 or 3 electrons in their outer shell therefore they have to give them away to achieve
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INORGANIC CHEMISTRY – CLASS XI (ISC) Properties of Group 1 elements [Alkali metals] 1. Due to high reactivity‚ alkali metals do not occur free in nature. Elements of group 1 (or IA) are known as alkali metals because their hydroxides are soluble in water and form strongly alkaline solutions. Alkali metals are stored under kerosene oil because they get tarnished on exposure to air. 2. The general electron configuration of alkali metals is ns1. 3. Alkali metals have largest size and lowest
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Electronic waste From Wikipedia‚ the free encyclopedia For the EC directive‚ see Waste Electrical and Electronic Equipment Directive. Defective and obsolete electronic equipment. Electronic waste‚ e-waste‚ e-scrap‚ or waste electrical and electronic equipment (WEEE) describes discarded electrical or electronic devices. There is a lack of consensus as to whether the term should apply to resale‚ reuse‚ and refurbishing industries‚ or only to product that cannot be used for its intended purpose
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Chemistry - Module 2 - Metal 1. Metals have been extracted and used for many thousands of years * Outline and examine some uses of different metals through history‚ including contemporary uses‚ as uncombined metals or as alloys. Contemporary Uses of common metals Metal | Uses | Iron and Steel (an alloy with <2% carbon)Good tensile strength‚ cheap‚ rusts (corrodes) | - Railways‚ bridges‚ buildings- motor cars bodies‚ ships and trains- Engine blocks‚ fire hydrants‚ drainage
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