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Physics Essay

Circuit Theory
The use of a combination of the two models helps achieve low and high frequency paths without having to bear the losses associated with convectional power-splitter circuits.To understand how the circuit operates we can evaluate the behavior of the constituent components. One of these components is the capacitor which is a passive basic circuit element that stores electric energy. It has a current-voltage relationship given by, . Voltage across it doesn’t change instantaneously and when there
Pages: 4 (1000 words), Essay
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Cycle of Photon
A large sized photon has effects on the nucleus of an atom. Though said to be massless, its effects cannot be overlooked. A photon could alter Coulombs law and there would be extra degrees of freedom for electromagnetic fields.An atom has a varied number of energy levels also referred to as energy states. In each of these energy levels, electrons oscillate with vibrations and thus produce energy. The number of electrons in each energy level increases as the distance from the nucleus increases.
Pages: 5 (1250 words), Essay
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Carbon cycle and climate change
Earth basically does this by regulating the concentrations of biogenic greenhouse gases, out of which the most important ones are the carbon dioxide (CO2) and methane (CH4). Too much of carbon dioxide in the atmosphere makes earth a hot ball, whereas if its concentration is lowered below a certain level, everything could freeze. So for the years ahead, regarding the climate change, the concentration of carbon dioxide is of a great concern.Here the question again arises, that what are the major
Pages: 5 (1250 words), Essay
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Consequences and Significance report
A nuclear reactor makes use of diesel generators for providing emergency backup system. These generators are also used at least once a month to carry out maintenance processes and thus result in the production of excess GHG emissions into the atmosphere. Not only this, nuclear reactors generate radioactive gaseous emission as well into the environment. These are generated either as a result of radioactive processes being carried out in the reactor or the exhaust of ejector; but they are
Pages: 4 (1000 words), Essay
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Comparative Critical Review
According to Tipler and Gene (297), whenever the internal energy of a system increases it results to an elevation in temperature leading to the alteration of matter’s state such as solids melt to liquid whereas liquid into gas. Tipler and Gene state that a cooked potato usually undergoes some changes; this is due to the rapid exchange of joules in and of the potato such that while 100 joules of energy go into the potato, similarly 90 joules come out (Tipler & Gene, 2007, p. For better
Pages: 6 (1500 words), Essay
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Chapter 2 Review of organic solar cells
In cases where the chain is uniform, this is likely to result into a metallic behavior of the elements. Since single bonds are known to have a longer chain as compared to double bonds and as a result, a perturbation is produced when the material is in its electronic state hence forming an electronic spectrum. This band gap is has characteristics which are similar to the band gaps of inorganic semiconductors such as silicon and galliumarside therefore allowing the materials to absorb visible
Pages: 27 (6750 words), Essay
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Correlation between La Nia/El Nio and seismic activity
Walker also noted that EPR that is in existence between 20 degrees south and 40 degrees south has one of the most rapidly spreading ridge segments in the world. These ridge segments are characterized by high levels of submarine volcanic activity and hydrothermal activity. The behavior has also been linked by the author to underpin the apparent chronological link between the El Nino conditions as reflected in the extreme lows in SOI and the seismicity’s elevated levels along this EPR’s part
Pages: 4 (1000 words), Essay
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Concepts in Physical Science
The field of chemistry is as ancient as the scientific thought process itself. The earliest record of using metals by humans appears to be gold. It is usually found free or raw in nature and does not include chemical processing to obtain it. It also means that other metals like silver, tin, copper and iron (also found raw in nature) gave the earliest humans an opportunity to work with metals. Democritus was a Greek philosopher who founded the atomistic school where he worked on finding the
Pages: 6 (1500 words), Essay
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Chapter 3 Materials and Experimental Techniques
IC70BA was purchased from Solaris Chem Inc.Regio-regular poly (3-hexylthiophene) (P3HT) is used as an electron donor/hole transporter and light absorber in this study. Regioregular implies that each 3- hexylthiophene unit in the chain in the polymer is oriented in such a way that the C6H13 residue group is either head to tail or head to head (Joshi 2008).It is because of this property that the polymer has the qualities of better ordering and self-organisation during deposition, meaning that the
Pages: 14 (3500 words), Essay
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Commodity: Oil
South America, Europe, Middle East to North Africa, Sub-Saharan Africa and the Asia Pacific. The company applies applied sciences and heavy research into coming up with innovative products for the petroleum products and the refinery business. With revenues of over 420 billion dollars, the company has grown to control the industry it trades in as per 2013. The company has an asset platform of over 346 billion dollars as of 2013; the business grows at a faster rate and has a stable cash flow that
Pages: 7 (1750 words), Essay
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Cons of radiation
They have a great effect on the host rock owing to the construction and burial of repository (Miller & Spoolman, 2010).For a long time, radiation from the sun as well as that from other human activities that are related to treatment and the creation of nuclear weapons has been linked to global warming and its adverse effects. The exposure of some radioactive elements can turn pieces of land sterile. This means that numerous activities can no longer be performed on land with such conditions
Pages: 4 (1000 words), Essay
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Composite material failure in Aircraft
There have been several materials that have been discovered as well as various ground breaking composite developed, while some, not all of them, have proven to be a success. Among such materials is carbon fibre, which happens to be used through combining it with additional materials to come up with some composite. Its properties, for instance its stiffness, low weight, high tensile strength high temperature tolerance, low thermal expansion as well as high chemical resistance makes carbon fibre
Pages: 36 (9000 words), Essay
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Climate change
The thermosphere is the second outermost layer, which sits at about 80 to 700 kilometers above sea level and is separated from the exosphere by a layer called thermopause. The layer is completely cloudless, and the molecules are in extremely low densities and its temperatures can rise as high as 1500 `c but it would not feel hot to a human in direct contact because of low density of molecules (Nolt). The mesosphere sits at the third highest level of the atmosphere at about 50 to 80 kilometers
Pages: 7 (1750 words), Essay
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