SCIENCE INFORMATIC WS011 CONSERVATION OF ENERGY GROUP MEMBER: 1. ADRIAN HO IK LIANG (MS0915542624) 2. MOHD. TARHAMIZI BIN ABD HAMID ( MS0915515816) 3. ZURINAH BINTI PAKEE ( MS0915517005) 4. DESMOND ANAK BONNIK (MS0915514779) 5. ELMA LIM ( MS0915514865) LECTURER ’S NAME: MR. SYED NASIR BIN SYED AHMAD Content Title INTRODUCTION POTENTIAL ENERGY GRAVITATIONAL POTENTIAL ENERGY ELASTIC POTENTIAL ENERGY KINETIC ENERGY PRINCIPLE OF CONSERVATION ENERGY WORK-ENERGY THEROM CONCLUSION BIBLIOGRAPHY Page 1
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his friend’s house. He has to exert a 110 N horizontal force to push the car at a constant speed. How much thermal energy is created in the tires and road during this short trip? thermal energy is created in the tires and road = 110 * 150 =16500 J A 30 kg child slides down a playground slide at a constant speed. The slide has a height of 4.0 m and is 7.0 m long. Using energy considerations‚ find the magnitude of the kinetic friction force acting on the child. The friction force F is parallel
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Importance of Electrical Energy Electric Energy We need energy in various forms like heat‚light‚sound etc.The development new technology made it possible to convert electrical energy into any form of energy.This gives electrical energy an important position in the world.The running of the modern industrial structure depends on the low cost and the uninterrupted supply of electricity.In short we can say that a country is developed if the per capita consumption of electrical energy is much higher.
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ISSN 0254-4725 Food energy – methods of analysis and conversion factors FAO FOOD AND NUTRITION PAPER 77 Ingested energy (IE) = gross energy (GE) Faecal energy (FE) Combustible gas (GaE) (from microbial fermentation) Digestible energy (DE) Urinary energy (UE) Surface energy (SE) Metabolizable energy (ME) Heat of microbial fermentation Obligatory thermogenesis‚ i.e. excess heat relative to glucose during ATP synthesis Net (metabolizable) energy (NME) Non-obligatory dietary thermogenesis
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Experiment 4: Work‚ Power and Energy Maria Isabela Mendoza‚ Carmela Miranda‚ Arianne Nagrampa‚ and Vivien Oreo Department of Biological Sciences University of Santo Tomas España‚ Manila‚ Philippines Abstract The experiment performed involved work‚ power and energy. On the first activity‚ the time it took for each member to go up and down the stairs was recorded. Afterwards‚ the work and power done were computed. The most powerful member in the group was student number 2 with power outputs of 239
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Energy Economics 40 (2013) S12–S23 Contents lists available at ScienceDirect Energy Economics journal homepage: www.elsevier.com/locate/eneco On the economics of renewable energy sources Ottmar Edenhofer a‚b‚c‚⁎‚ Lion Hirth a‚d‚ Brigitte Knopf a‚ Michael Pahle a‚ Steffen Schlömer a‚ Eva Schmid a‚ Falko Ueckerdt a a Potsdam Institute for Climate Impact Research‚ P.O. Box 601203‚ 14412 Potsdam‚ Germany Economics of Climate Change‚ Technische Universität Berlin‚ Straße des 17‚ Juni 145
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POTENTIAL ENERGY DIAGRAM In physics the terms of mechanical energy usually refers to Potential energy (U) and Kinetic Energy (K). In the absence of non-conservative‚ or dissipative forces‚ these energies obey the law of conservation of energy‚ or ΔU + ΔK = 0. That is‚ when a system is only acting under the influence of conservative forces its total energy content never changes‚ the energy just converts between forms. At any point in the cycle‚ the total energy is constant‚ U + K = Umax = Kmax
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In “Green Roofs in Big Cities Bring Relief From Above‚” Tina Rosenberg claims that large cities like New York City‚ face ecological problems dealing with their roofs‚ sewage systems‚ urban heat island‚ and air pollution that could easily be fixed or improved by green roofing. Green roofing is the best alternative to black tar roofs. They include insulation‚ a waterproof membrane‚ a barrier to keep roots from creating holes‚ a drainage layer‚ a mat for erosion‚ soil‚ and finally the plants. Water
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Green Technologies Carlos Smith J.R. INF103: Computer Literacy Instructor: Carolyn Hughes June 28‚ 2010 I believe that with our rapid growing society and technologies we should start becoming more and more involved with making our planet and our life’s cleaner before it is too late to do anything about it. It is our responsibilities to make sure that we do whatever it takes to reduce the pollution because it not only affects us our animals as well. Most people will
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ENERGY: Energy is the amount of force or power when applied can move one object from one position to another or Energy defines the capacity of a system to do work. Energy exists in everybody whether they are human beings or animals or non-living things for e.g.: Jet‚ Light‚ Machines etc... Energy can have many forms: kinetic‚ potential‚ light‚ sound‚ gravitational‚ elastic‚ electromagnetic or nuclear. The many different natural and renewable energy technologies are by no means breakthrough. Many
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