Chapter 1: Technical Measurement and Vector 5. Newton’s law of universal gravitation is represented by [pic] where F is the gravitational force‚ M and m are masses‚ and r is a length. Force has the SI units kg ∙ m/s2. What are the SI units of the proportionality constant G? 8. The speed of light is now defined to be 2.99 7924 58 × 108 m/s. Express the speed of light to (a) three significant figures‚ (b) five significant figures‚ and (c) seven significant figures. 15. A rectangular
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Magnetism and Electrostatic The three things I learned from the lesson was that magnetism is a natural force that causes magnets to function; the different turns that describes the properties of magnets; and the Greek philosopher who have been discovered the properties of lodestone. There are ways that I can relate my learnings to my everyday life; using magnet to find small pieces of metallic objects and using electric motor to convert electrical energy for our everyday use. Why simple transformer
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1 Study Guide for Lectures 8/24‚ 8/26‚ 8/31‚ and 9/2 Note: It is highly suggested that you reference the figures/figure legends shown in class to further help you understand class material. The Genome Project (~92% complete): • 20‚000-28‚000 genes in the human genome o The genome was found using a shotgun sequence. o 10% of the genome is Long Intersperse Nuclear Elements (=LINEs). This leaves the questions as to which part of the genome are LINEs? 80‚000-120‚000 proteins in a cell. 200‚000-2
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Daniel Cho Period 7 4/7/15 Electricity and Magnetism Spring Lab Project Electric Field Hockey Objective: Write two paragraphs. Explain the challenges of scoring goals in this game. Be sure to include in your explanation the terms positive and negative charge‚ electric field line and explain how mass affects the motion of the “puck.” This simulation project is all about getting the puck into the goal while surround the puck with using few positive and electric charges. The positive charges
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Abstract Density functional theory (DFT) calculations have been used to investigate the structural properties‚ dipole moments‚ polarizabilities‚ Gibbs energies‚ hardness‚ electronegativity‚ HOMO/LUMO energies‚ chemical potentials‚ density of states and detonation properties of trans and cis configurations of azocubane. All properties have been obtained using the B3LYP functional and 6-31G(d‚p) basis set. Also‚ IR‚ UV-Vis‚ CD and NMR spectra of the structures were simulated. The volumes of the structures
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The polarity of water Polarity means that the molecule has both a positively and negatively charged end. More important‚ the polarity of water is responsible for effectively dissolving other polar molecules‚ such as sugars and ionic compounds such as salt. Ionic compounds dissolve in water to form ions. This is important to remember because for most biological reactions to occur‚ the reactants must be dissolved in water. Because water is able to dissolve so many common substances‚ it is known as
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hydrogen chloride has properties: Hydrogen chloride has one molecule of hydrogen and one molecule of chlorine: Hydrogen chloride has a very powerful smell. It is in the form of a gas but only when it is at room temperature which is approximately 25 Celsius and when the pressure is high. The solubility of hydrogen chloride is very high this means that it can dissolve in water quickly because it dissolves many times in its own solution (the gas form of hydrogen chloride). It is very soluble because
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Biochemical Engineering Journal 36 (2007) 174–181 Removal of heavy metal from industrial wastewater using modified activated coconut shell carbon O.S. Amuda a‚∗ ‚ A.A. Giwa a ‚ I.A. Bello b Environmental/Analytical Chemistry Unit‚ Department of Pure and Applied Chemistry‚ Ladoke Akintola University of Technology‚ Ogbomoso 210001‚ Nigeria b Physical Chemistry Unit‚ Department of Pure and Applied Chemistry‚ Ladoke Akintola University of Technology‚ Ogbomoso 210001‚ Nigeria Received 1 September
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which ions are held together in a lattice structure by ionic bonds. Usually‚ the positively charged portion consists of metal cations and the negatively charged portion is an anion or polyatomic ion. Ions in ionic compounds are held together by the electrostatic forcesbetween oppositely charged bodies. Ionic compounds have high melting and boiling points‚ and they are hard and very brittle. Ions can be single atoms‚ as the sodium and chlorine in common table salt sodium chloride‚ or more complex groups
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Name: __________________________________ ( ) Class: 4Q HWA CHONG INSTITUTION PRELIMINARY EXAMINATION 2010 CHEMISTRY 5072 Paper 1 Time: 1 hour INSTRUCTIONS TO CANDIDATES Do not turn the pages over until you are told to do so. Write your name and index number on the answer sheet in the spaces provided. There are forty questions on this paper. Attempt all questions. For each question‚ there are four possible answers labelled A‚ B‚ C and D. Choose the one you consider correct and
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