College of Rehabilitation Sciences‚ University of Santo Tomas España‚ Manila Philippines Abstract This report aims to show how to determine the power output of going up a staircase and going down the same staircase‚ to determine the change in kinetic and potential energy of an object in free fall‚ and to demonstrate the conservation of mechanical energy. 1. Introduction Work‚ power and energy are always in relation to each other for these three are always present in every motion that occurs
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Special Report Plastic Additive: A Techno-Commercial Profile B.G. SAMPAT E-mail: bgsampat@bom3.vsnl.net.in INTRODUCTION Every activity in modern life is influenced by plastics and many depend entirely on plastic products. All these plastic products are made from the essential polymer mixed with a complex blend of materials known collectively as additives. Without additives‚ plastics would not work‚ but with them they can be made safer‚ cleaner‚ tougher and more colourful. Additives cost money
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Objective: the purpose of this lab is to investigate the law of conservation of energy. This can be achieved by measuring both potential and kinetic energy through the experiment conducted. Back ground: Kinetic energy is said to be the energy of motion. Kinetic energy can be defined through this equation: KE=12mv2 (equation 1) Where m is the mass of the object in motion‚ and v is the velocity of the moving object. Potential energy is the
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wood block across a surface to determine whetherthe surface area ofthe block orthe type ofsurface affectsfriction. We found that the surface area of the block did not change the coefficient of kinetic friction‚ while the types of materialsin contact were directly related to the coefficient of kinetic friction. INTRODUCTION Friction is a part of our everyday life. Nearly every movement we make involves friction‚ and we have instinctively learned to take advantage of friction‚ or the lack
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experiments such as burning substances including phosphorus and sulfur in the air. This showed that when the air combined with the sulfur and phosphorus‚ it created substances that weighed more than the original substances. This gave the example that when the substances were burned‚ the weight from the new substances was lost from the air. The substances lost in the air plus the substances after being heated would equal the original weight of the sulfur and phosphorus. This allowed Lavoisier to observe and
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Semester 1 Revision The list below will assist you to check your understanding of the main concepts studied in Semester One. Work carefully through the list below and make sure that you can do what the statement says. This is not a course summary. It is a checklist for you to use to identify areas where you need extra work and a guide for your study. Macroscopic properties of matter I can | | | Classification
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There are over twenty minerals needed in dietary intake to maintain health. Minerals are broken down into two categories; macrominerals and microminerals. Macrominerals are considered major minerals and include sodium‚ potassium‚ chloride‚ calcium‚ phosphorus and sulfur. Microminerals or trace elements are needed in smaller quantities and include iron‚ copper‚ zinc‚ selenium and iodine amongst others. Although trace elements are needed in smaller amounts‚ they are just as essential to health as major
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silicon‚ sulphur‚ manganese‚ phosphorus and carbon from pig iron by oxidation conducted at a temperature of about 1300oC. • Oxygen required for oxidation is supplied partly by the atmospheric air passing through the furnace and partly by the additions of iron oxide. • Silicon‚ manganese and phosphorus in molten pig iron form SiO2‚ MnO and P2O5. These oxides combine with iron oxide to form a low melting point liquid slag. • As the iron loses its silicon‚ manganese‚ phosphorus and carbon‚ the melting point
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that the momentum is moving east. There are various types of energy‚ including chemical‚ thermal‚ electric‚ sound‚ mechanical‚ potential and kinetic energy. In our daily lives‚ objects all around us are constantly changing their forms of energy. In a Newton’s Cradle‚ the balls are shifting from potential energy (when the balls are at rest) to kinetic energy (when the balls move). Despite the fact that the form of energy is changing‚ this does not mean that energy is being lost. The law of conservation
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determines how high your loops or hills can be? What determines how many features you can have in one roller coaster? Something that determines how high you’re loops and hills go is how much kinetic energy the coaster has before going into those loops and hills. If a coaster does not have enough kinetic energy to go up and around a loop or up a hill‚ then it will get stuck. Also‚ if the coaster carts don’t have enough space between them‚ they could get jammed depending on the hight of the loop
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