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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Biochemical Engineering James M. Lee Department of Chemical Engineering Washington State University Pullman‚ WA 99164-2714 jmlee@wsu.edu Chapter 1. Introduction ................................................................ 1 1.1. 1.2. 1.3. 1.4. 1.5. 1.6. Biotechnology .............................................................................. 1 Biochemical Engineering............................................................. 2 Biological Process....................................
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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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lying on the top shelf of a book case has potential energy and so does a fully stocked soda machine. If the book were to fall off the shelf‚ or a soda shoots into the dispenser‚ the potential energy become kinetic energy. Nothing can move with out energy‚ and the energy of movement is kinetic. The book on the shelf had to be placed in that position and the soda machine had to be stocked. The weight of the book‚ the force‚ and the distance of the shelf‚ and all of the motions needed to reload a
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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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topped that off with some splatter paint. Our catapult stores energy in the bungee cords at the bottom. When the ball is fired the potential energy in the bungees are converted into kinetic energy. The force of the bungee cords causes the bottom of the arm to fly back and the front of the arm to fly forward. The kinetic energy travels through the arm to the top of the lacrosse stick and into the ball. The
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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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1.2 How have environmental cycles changed? The capacity of ecosystems to provide benefits to humans‚ that is to provide ecosystem services‚ derives from environmental cycles of water‚ nitrogen‚ carbon‚ and phosphorus. These processes have in some cases been significantly modified by human activity. Changes have been more rapid in the second half of the 20th century than at any other time in recorded human history. Water cycle: Water withdrawals from rivers and lakes for irrigation‚ urban uses‚
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electron gun is an instrument that consists of an electron source (which emits electrons and focus the stream into a beam)‚ a magnetic coil (which uses a voltage to create a magnetic field that deflects the beam away from the center line)‚ and a phosphorus screen (which illuminates when the beam comes in contact with it). The electron source contains an electrically heated filament (cathode) and an anode to create an electron source and control the intensity (brightness) of an electron beam. Between
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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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