these factories with all of the pollution caused serious health problems and side effects. An example of a harmful experience to workers had is the Phosphorus poisoning of 1898. Mentioned in the National Archives‚ Phosphorus poisoning arises when a worker inhales the fumes of yellow phosphorus used in the manufacture of matches. Inhaling this yellow phosphorus can cause a disease called “Phossy Jaw‚” osteonecrosis of the jaw. Smog also became a huge issue. Smog is a fog or haze that is caused by a factory’s
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chance it gets. The gas molecules move from an area of high pressure to one of low pressure. What is the kinetic-molecular theory? The kinetic-molecular theory states: 1) All matter is composed of very small particles called atoms‚ions or molecules. 2) All of these small particles are in constant motion‚ even at the coldest temperature whether vibratory or translatory. 3)The kinetic energy of the particles is a measure of temprature.
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physics involves two components: bow mechanics and arrow flightBow mechanics: when an archer pulls back the string‚ he does work on the bow‚ and is converted to potential energy. Upon release of the arrow‚ this potential energy is converted into kinetic energy‚ most of which is transferred to the arrow and gives it its initial velocity. The force that the archer applies to the bow to bend it is actually the weight that he feels on his fingers as he pulls back the string. The archer feels a greater
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*CHEMICAL KINETICS Collision theory and rates of reaction *One of the main considerations when examining chemical reaction is whether it will take place fast enough for it to be useful. *In other words‚ there’s no point carrying out a reaction if it takes 150 years to form the product! *Many chemical reactions occur very quickly. *Studying Reaction Rates *Defined as the change in concentration of reactants of products per unit time. *Units: mol dm¯³ s¯¹ *Rate of Reaction * ‚ the
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electricity for lights and appliances‚ and with the foods we consume (Serway & Vuille‚ 2012). In this experiment the focus is mainly on mechanical energy‚ which is the sum of kinetic energy‚ the energy associated with motion‚ and potential energy‚ the energy associated with relative position. The sum of the kinetic energy and the gravitational potential energy remains constant at all times and hence is a conserved quantity (Serway & Vuille‚ 2012). In physics‚ work is done only if an object
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VALENCY Valency can be defined as the combining capacity of an element.The electrons present in the outermostmost shell of an atom are known as valence electrons and they determine the valency.The valence electrons take part in chemical reaction and they determine the chemical properties of the elements.Let us take an example‚ Theatomic number of carbon is 6 Its configuration is =2‚4 It means valency of carbon is 4. In chemistry‚ valence‚ also known as valency or valence number‚ is the number
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the energy of the photons red‚ orange‚ yellow‚ blue‚ indigo‚ and violet light is sent right back to the air around the white shirt. So none of the energy is absorbed by atoms and converted into kinetic energy of atoms. Temperature measures the kinetic energy of the atoms. So if there is no increase of kinetic energy this means that there will be no increase of temperature in the lighter colored clothes. Now when you look at black clothes‚ none of the colors are being absorbed by the electron in the
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gravitational potential energy (GPE) as it travels to the top. Once over the top‚ the car gains speed as GPE is transferred to kinetic energy (KE). As it travels to the top of another loop‚ KE is transferred to GPE. Not all the energy is transferred to or from GPE – some is transferred to the surroundings as heat and sound. All moving objects have kinetic energy‚ KE. The kinetic energy an object has depends on the mass and speed. If the mass doubles‚ the KE doubles and if the speed doubles‚ the KE quadruples
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Roller Coasters How does a Roller Coaster work? Roller coasters have no engines (although many still tend to think they do) and are thus not propelled around the track by a motor. The transfer of potential energy to kinetic energy is what steers the roller coaster‚ and all of the kinetic energy required for the ride is present once the coaster goes down the first ‘hill’. Laws of Gravitation Gravitational energy takes place due to the gravitational force by which matter attracts other matter. As the
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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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