of the item. (c) (i) The energy on impact is calculated by using the following equations: Potential Energy (PE) = mass x gravity x height This gives the potential energy at the height when the ball is held at the start of the test. This can be used as a check to for the Kinetic energy (KE) equation as the law of energy conversation states that energy may neither be created nor destroyed. Therefore the sum of all the energies in the system is a constant. So the
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Government Grants for Alternative Energy Research Jon Smith ENG 122 (ABE1135R) Mrs. Jane Smith 8 October 2010 Government Grants for Alternative Energy Research Energy sources play a crucial role‚ affecting just about every activity that societies do in every country around the globe. The role in the economic development of a region or country does not need emphasis; because of the greater effects‚ it exercises a huge influence. It is the
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sensitive magnetometers; worked in electrodynamics and the electrical structure of matter JAMES PRESCOTT JOULE -discovered mechanical equivalent of heat HERMANN VON HELMHOLTZ -developed first law of thermodynamics‚ a statement of conservation of energy LORD KELVIN (born WILLIAM THOMSON) -proposed absolute temperature scale‚ of essence to development of thermodynamics SIR JOSEPH WILSON SWAN -developed a carbon-filament incandescent light; patented the carbon process for printing
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systems. What leads to this phenomenon? What will happen if we destroy our environment continuously? Content: 1. No plastic Bag i) Effect of plastic bag to environment and why no plastic bag? * contributes to air pollution and increases energy consumption * takes 1000 years for polythelene bags to break down * as it breaks down‚ toxic substances leech into the soil and enter the food chain ii) How? What should do to reduce the use of plastic bag? * Public should support
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the leading innovators of electronics. The brand itself has become associated with high-technology and excellent performance. Eco-friendly solutions and Energy conservation The company is a leading example of contributing proactive and extensive approach to the development of the natural environment by introducing their cutting edge energy-management technologies. WEAKNESSES Unstable financial performance The corporation as a whole is often prone to escalating business costs due to
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THE UNIVERSITY OF HONG KONG DEPARTMENT OF MECHANICAL ENGINEERING Part I APPLIED DYNAMICS LAB (full report required) DYNAMICS OF A TROLLEY ON RAILS Based on document MGS/ID137/203 by Dr MG Sainsbury Modified in Feb 2007 & Jan 2008 by Dr L Huang and Mr WS Sze 1. Objectives (1) To measure the velocity and acceleration of a trolley as it descends on inclined track and is stopped by a nonlinear elastic arrester system. (2) To compare the measured acceleration‚ velocity and displacement with theoretical
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Natural Resources and Energy Paper Spechelle Jones‚ Cherrie Chicaletto‚ Robert Hernandez‚ Jamie Hughes SCI/256 October 13th‚ 2010 The world is growing at a rate of speed of 2.8 people per second and losing 1.6 acres of land per second in accordance with an article last month titled Environmental Impacts from Unsustainable Population Growth on the World Population Awareness website. World Population Awareness is an organization concerned with recent problems of as well as solution ideas
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different types of energy transfer For us to do work‚ we need energy. Energy is measured in joules‚ (J) or kilojoules (kJ) Energy exists in many different forums such as Kinetic and potential energy – Kinetic energy is the movement of energy and potential is stored energy‚ energy ready to go. A lawn mower filled with gasoline‚ a car on top of a hill‚ and students waiting to go home from school are all examples of potential energy. Gravitational potential energy is the energy crazed by a body
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The automated equipments which were originally used in the intelligent office buildings are being installed in the residential buildings and houses as well. The intelligent houses and the intelligent communities are taking shape. To reduce the energy consumption‚ the development of “green buildings” has become a
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Energy is one of the most important factors in today’s living. Energy is used for many reasons. For example: helping maintain the flow of businesses‚ transporting goods and services to different places. Most of our daily activities‚ if not all‚ require some type of energy. According to the Energy Project‚ “We need energy for everything -- to power our homes‚ drive our cars‚ use technology and even to feed and clothe us.” Even the resources we use on a daily basis‚ such as our phones or the Internet
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