Free Physics Essay Examples and Topics | Page 29

Macroeconomic Equation of Exchange Physics Essay

4 pages (1445 words) , Download 2 , Essay

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It is expressed as, M x V = P x Q. The money together with velocity is the source of funding for economic activities. It shows that for a given stock of money, an increase in velocity helps finance a greater value of transactions than money could have done by itself. The velocity of money describes the amount of economic activity with a given money supply.

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Information System in Business Physics Essay

4 pages (1168 words) , Download 3 , Essay

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However, e-commerce can be categorized into the following types of business that are conducted via the Internet. This includes (Define E-business and E-commerce (what is the difference between e-business and e-commerce): E-commerce transactional Websites; Relationship and service-oriented websites; Brand Building Website; Portal Website.

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Important Factors for Interface Design Physics Essay

10 pages (2851 words) , Download 3 , Essay

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High-quality interface design offers considerable optimistic outcomes. A high-class design is a procedure that requires an understanding of systems design procedures and user properties, like users' substantial restrictions, characteristics, and inspirations. User interface design should be developed with straightforward, unbiased, and reliable screens.

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Design and Development of a New Web-Browser Physics Essay

15 pages (4203 words) , Download 2 , Essay

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Web browsers do not carry an immense business scope but they have become the representatives of the technology itself. They are the vehicles that carry you along with the fascinating world of the web while eliminating the reliance on any additional software aids. Today’s web browsers are supposed to provide possibly all functionalities.

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Reasons Why the Central Bank of China Declared a Hike in the Cash Reserve Ratio Physics Essay

4 pages (1052 words) , Download 2 , Essay

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International trade theory establishes that the lower the currency rate of exchange, the higher will be the net export volume, which is actually beneficial for the economic growth of an economy. China adopted this very strategy and hence, climbed up the peak of growth post-globalization, although other economies have to compensate for the same.

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Technology Development in Modern World Physics Essay

4 pages (1264 words) , Download 3 , Essay

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As time progressed, tools became more complex and human societies began to flourish. Research into the fields of mechanics, metallurgy, and other industrial fields created new jobs and opportunities. The development of computers and the Internet marked the new acceleration rate in the information technologies revolution.

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TEM, SEM, EDS in Electron Microscopy Physics Coursework

20 pages (5000 words) , Download 2 , Coursework

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From this paper it is clear that to obtain such a pattern, the selected area aperture is placed in the image plane of the objective lens and used to select only one part of the image. Using projector lenses to focus on electron beams to obtain small spots on the object surface, the diffraction patterns can be obtained.

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Forces in Aerodynamics: Blended Wing Body Physics Research Paper

6 pages (1500 words) , Download 3 , Research Paper

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Man always wished to fly, after he made automobiles and ships. Several efforts were made since the early 1400’s to watch the skies closely. Ornithopters, Hot air balloons and Gliders have seen light in this process. In 1903 the Wright brothers came up with a flight model and since then the aircrafts have been undergoing many changes.

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Alternatives Open to the Greek Government to Alleviate Its Economic Woes Physics Essay

5 pages (1485 words) , Download 2 , Essay

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It is essential to state that Greece is the 32nd largest economy in the world with a GDP in 2010 of US$ 320 billion (CIA factbook). Greece became a member of the EU (European Union) in 1999 and a member of the EMU (European Monetary Union) in 2001. Since 2009, the Greek economy has seen negative growth.

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PRCs Central Bank Physics Essay

4 pages (1196 words) , Download 2 , Essay

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Compared to its closed-door policies until the mid-1970s, the liberalization it initiated has generated more business opportunities for entrepreneurs. When the government relaxed its price control and promoted foreign investment, the US started to invest in PRC beginning in 1979 after both countries establish diplomatic relations.

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Transmission Electron Microscopy Physics Coursework

12 pages (3000 words) , Download 2 , Coursework

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This essay demonstrates that the working principle of a TEM is that when electrons are accelerated up to high energy levels and then focused onto a specimen, they scatter or backscatter elastically or in-elastically, producing many different interactions that are a source of signals like X-Rays, enabling magnification of ultra-microscopic particles.

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Electronic Business and Electronic Commerce Physics Essay

3 pages (750 words) , Download 3 , Essay

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E-commerce and e-business have four basic perspectives including online communications, business deliveries, service provisions, and business transactions. Each of these perspectives provides the basis for the development of a system while introducing some structural, operational, environmental, and infrastructural changes.

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Aerodynamics and Propulsion principles Physics Coursework

6 pages (1500 words) , Download 2 , Coursework

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Turbofan is the most ubiquitous type of air-breathing engine and refers to a gas turbine engine that is designed to work for subsonic speeds. It is a unique type of internal combustion engine which does not have any reciprocating parts, such as the car engine.

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Two-Way Crossover and Second Order Butterworth Physics Essay

4 pages (1188 words) , Download 2 , Essay

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This is a passive filter circuit that combines inductance and capacitance to allow a specific range of signal frequency to pass and stops those out of its range. The simple LC network forms a series-tuned network, where if we consider the low pass filter the series component reactance increases while that of the shunt component decreases.

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Physics Science: The Properties of Heat Physics Research Paper

3 pages (750 words) , Download 2 , Research Paper

The whole universe is believed to be made of two things: matter and energy. Both energy and matter are inter-convertible even though it is impossible for us to create matter or energy. In fact, energy can neither be created nor be destroyed even though we can transform energy from one form into different forms.

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Aerodynamics and propulsion Physics Research Paper

5 pages (1250 words) , Download 2 , Research Paper

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As the aircraft moves horizontally, the shape of the wings create a pressure gradient beneath its top and bottom surface, hence creating a vertically upwards force (Munson, Young and Okiishi).

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Wind tunnel use Physics Research Paper

6 pages (1500 words) , Download 2 , Research Paper

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The Lift force is created according to the hydrostatical theorem of the Archimedes principle. According to this principle, the aircraft will be buoyed up by a force equal to the weight of the air displaced by the aircraft.

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Diffusion-Weighted (DW) Magnetic Resonance Imaging (MRI) Physics Essay

13 pages (3965 words) , Download 3 , Essay

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Diffusion on the molecular level is said to be the result of natural Brownian movement, where molecules randomly move through the diffusion medium, because of the agitation caused by thermal characteristics of the medium. In all the displacement of the molecules comes up to zero by mean figures but over time, there are positive probabilities.

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Physical properties of transparent optical polymers Physics Dissertation

14 pages (3500 words) , Download 3 , Dissertation

This is because they are lighter, have higher workability, better impact resistance, and can be easily colored. The physical properties of glass are compared in figure 5.1. Fig. 5.1: Comparison of physical properties of glass and plastics (Weber, 2003). Commonly used optical polymers apart from PMMA and PC include polystyrene (styrene) (PS), polymethylpentene (TPX), polyetherimide (PEI), stryrene acrylonitrile (SAN), acrylic/styrene copolymer, methyl methacrylate styrene copolymer (NAS), polysulfone, allyl diglycol carbonate (CR-39) (ADC), Telfon (Telfon AF® ) (TPFE), acrylonitrile, butadienne, and styrene terpolymer (ABS), amorphous polyamide, and fluorinated-(ethylenic-cyclo oxyaliphatic

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Positron Annihilation Physics Essay

10 pages (2500 words) , Download 2 , Essay

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When a low energy positron collides with a low energy electron, there is an emittance of two gamma rays in the opposite direction. This phenomenon, also called positron annihilation, results in two gamma rays at 180° and with 0.511 MeV of energy moving in opposite directions.

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Paleo-Discharge of the Maumee Floods Physics Research Paper

9 pages (2489 words) , Download 5 , Research Paper

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The site descriptions for the areas provide physical views and logical dimensions as viewed on maps and the ground. The calculations of the measurements provided are a representation of the estimates that are used in solving the problem. The results positively indicate the extent of the damage and predict the next step in solving the problem.

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Evidence for (or against) water on Mars Physics Research Paper

8 pages (2000 words) , Download 4 , Research Paper

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Evidence for (or against) water on Mars. The issue of presence of water on mars has been a challenging question for many astronomers since 1877. “In the 1800s, human imaginations ran wild as astronomers glimpsed what they took to be canals on the Martian surface.

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Global Pattern of Earthquakes and Seismic Energy Distributions Physics Term Paper

14 pages (3932 words) , Download 2 , Term Paper

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The crucial elements of the physical aspects of the earthquakes are the energy that is dissipated, which also have far-reaching consequences on the life of human beings. In this regard, it is agreeable that the studies that are oriented toward studying the impacts of the amounts of energy that are produced by the seismic events are also pertinent.

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Range of semiconductor devices and circuits Physics Coursework

12 pages (3000 words) , Download 2 , Coursework

If the positive side of the ohmmeter is connected to the P-material and the negative side to the N-material the diode will be forward biased and due to this the voltmeter will at an appropriate scale will indicate some resistance. When the two ohmmeter leads are reversed the diode will be reverse biased and this indicates whether a diode is good or bad.

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The Reinterpretation of Dreams: An Evolutionary Hypothesis of the Function of Dreaming Physics Essay

11 pages (3213 words) , Download 2 , Essay

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Even a period of exposure to media violence intensifies expectations of aggression as a means of resolving a conflict. The study also demonstrates that even where there is no conflict, exposure to media violence can influence the exposed individual to misinterpret situations as possible hotbeds of conflict which in turn leads to expectations of aggression and thus invokes aggressive behavior.

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Magnetic Geophysical Method Physics Essay

12 pages (3000 words) , Download 2 , Essay

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The magnetic geophysical method is a scientific approach that is used to measure variations or anomalies that are localized and small in the magnetic field of the earth. Materials found on the surface of the earth such as the basic igneous rocks, and the ore magnetic bodies are helpful when it comes to the identification of the magnetic variations because they have the magnetic properties.

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The Second Law of Thermodynamics Physics Term Paper

9 pages (2250 words) , Download 2 , Term Paper

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In the second law of thermodynamics, when complex systems undergo a certain change, then the system will either maintain their current order or decrease their order. This means that a change in a system cannot increase the order of the system. This principle can be well applied in our day to day life.

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The Frequency Encoding Gradients and Phase Encoding Gradients Physics Essay

6 pages (1585 words) , Download 2 , Essay

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Frequencies encoding gradients and phase encoding gradients are both essential parts of the spatially encoded data. It is true that using the induced differences in the frequency and the phase of precession, makes the data amenable for analysis by the Fourier transform (the read of the MR signal stored in the K-space represents the Fourier plane).

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Magnetic Susceptibility Distortions for Good Echo Planar Imaging Physics Essay

14 pages (3776 words) , Download 2 , Essay

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The existing boundaries between fat and compact bone are normally affected by the transverse magnetic field de-phasing and signal distortion. The consequence of the above is that frequency positions in the wrong location in the phase direction. Different results have been found from different body areas which have varying magnetic field strengths.

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Magnetic Susceptibility Technology Physics Essay

22 pages (5721 words) , Download 2 , Essay

Examples of these tissues include the interfaces involving bones and tissues that are found in the sinus and the lungs like the maxillary, mastoid, and ethmoid sinuses. Water proton amounts found in the inhomogeneity of the local field will result in off-resonance. The frequency changes of such spins vary in different regions and different patients.

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Investigation and previous work on optical and thermal measurements in transparent materials Physics Dissertation

16 pages (4000 words) , Download 3 , Dissertation

Therefore, this chapter details previous studies on the optical and thermal analysis of optical materials. The basics of ray tracing, optical features and thermal analysis are described first, followed by a discussion on previous investigations on optical, thermal and physical properties of glasses and polymeric materials such as polymethyl methacrylate (PMMA).

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Applications of Laser Technology Physics Essay

11 pages (2951 words) , Download 3 , Essay

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Whether it’s our industries, our medical research, surgical procedures, or even defense mechanisms, lasers have gained immense importance in all of these aspects. This significance is no surprise, as the precision and accuracy that one can achieve with the help of lasers are unmatched. They gained extreme significance in our major daily processes.

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The Concept and Use of Echo Planar Imaging (EPI) Physics Essay

18 pages (4907 words) , Download 2 , Essay

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EPI is a fast, flexible imaging method, with good contrast and resolution, and with many potential applications in clinical imaging, such as functional MRI and rapid entire brain imaging. Though, EPI can be very unforgiving and requires careful parameter selection. EPI is fast because it uses single excitation of a slice followed by the continuous readout.

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Theoretical review in optical materials used in Concentrating Photovoltanic (CPV) Technology Physics Dissertation

21 pages (5250 words) , Download 2 , Dissertation

Theoretical Review of Optical Materials used in Concentrating Photovoltaic (CPV) Technology. Solar cells produce electrical current in direct proportion to the amount of solar radiation falling on them. By increasing the intensity of solar radiation, it is possible to significantly increase the efficiency of electricity production by these cells.

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Modelling of Optical Parameters for Optimum Collection of Concentrated Solar Radiation Physics Dissertation

15 pages (4114 words) , Download 2 , Dissertation

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Innovative ideas have come out to save the earth from the destruction of its ozone layer. World population is expected to increase by about 10 billion by the year 2050 and if electricity demands are not programmed by now, there will surely be insurmountable problems for the people and the deterioration of the environment will exacerbate.

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Factors affecting quality of MRI image.Benefits of circular or square spiral EPI methods Physics Essay

10 pages (2500 words) , Download 2 , Essay

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Accurate image reconstruction depends on resonance frequency (rf) of a spin, which is achieved by strong homogenous external field and superposition of a spatially linear gradient. If these conditions are not met, then the relative positions of anatomical structures will be misrepresented in the reconstructed MRI image.

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The international space station. Major Components Physics Essay

10 pages (2500 words) , Download 2 , Essay

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The US launched its first satellite Explorer I in 1958, soon after the Soviet Sputnik in 1957. This was the start of space race. The race is in the Cold War era when both nations strived for supremacy in every field. The period was a set of high tension incidents without direct military action.

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Conversion of Energy Physics Essay

4 pages (1000 words) , Download 2 , Essay

Another way is through the atomic emission and absorption of light photons to generate photothermal effect producing thermal energy that converts photon’s energy to molecular vibrations, photoelectric effect that yields electrical energy from kinetic energy, and photochemical effect that renders storage of energy out of chemical changes.

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Goldilocks Zone Properties Physics Research Paper

5 pages (1250 words) , Download 2 , Research Paper

This area has some certain properties that distinguish it from other zones that do not support life. When looking at the properties of the Goldilocks Zone, it is the same as looking for conditions that can sustain life. These conditions include the presence of liquid water, suitable amount of sunshine, and a breathable atmosphere (Brian, 2011).

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Solar Panel Battery Charger 6-12V Physics Research Paper

20 pages (5000 words) , Download 3 , Research Paper

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The block diagram represents a 6-12V, 300mA circuit that charges batteries using solar cells that draw power directly from sunlight. The circuit can be divided into 3 parts: the voltage regulator, the comparator and the battery voltage checker. The voltage regulator controls the voltage and current from the solar panels to the battery.

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Global Warming: Causes, Effects, and the Future Physics Research Paper

9 pages (2636 words) , Download 7 , Research Paper

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The phrase ‘global warming’ has become very much familiarized by many people in the modern world. Global warming is now being considered to be the only cause and challenge for environmental protection. Many environmental activists have provided how global warming is going to affect the environment, as they have all come to the same conclusion.

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Electromagnetism and Mind Control Physics Essay

9 pages (2503 words) , Download 3 , Essay

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They are all the same kind of wavy disturbance that duplicates itself over a distance called the wavelength. Electromagnetic waves comprise an amalgamation of oscillating electrical and magnetic fields, perpendicular to each other. This is complicated to visualize, however, the waveform has similar distinctiveness to other types of waves (Evans 34).

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Energy as Essential for the Performance of Work Physics Essay

3 pages (947 words) , Download 2 , Essay

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Energy is basically the ability to perform work and to move heat. Energy is required for the performance of work. Energy exists in different forms in this world and there are different sources of energy. These include fossil fuels, nuclear energy, and light energy. Energy may be classified to be renewable and non-renewable.

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Year 2012: Fact or Fiction Physics Research Paper

14 pages (3500 words) , Download 2 , Research Paper

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The Mayan prophecy states that many devastating events will occur in December 2012 at a certain time that will lead to the destruction of the earth. On one hand, the astronomical knowledge of this ancient meso-american civilization is known to be far ahead of their times.

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Correlation of the light scattering properties of transparent conducting oxides to PV efficiency Physics Dissertation

24 pages (6000 words) , Download 2 , Dissertation

For sample 238, the transmission is directly proportion to the wavelength of the projected light. As the wavelength increases, the percentage transmission increases but a rapid increase in the percentage transmission can be seen by the projection of light from wave length of 455nm to 627nm.

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Magnetisation Behaviour of Transition Metals and Ferrites Physics Dissertation

35 pages (8750 words) , Download 2 , Dissertation

Within this dissertation, an examinatio of ferro-, ferri-, and paramagnetic fields and how they all behave distinctly and how the level of magnetism of an object can be measured using a superconducting quantum interfering device (SQUID), the Magnetic Optical Kerr Effect (MOKE), or a Vibrating Sample Magnetometer (VSM) will be examined.

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The Actions of Monetary Policy of the US Physics Essay

7 pages (1870 words) , Download 2 , Essay

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One of these important functions includes the regulation of the money supply in the country. This is dealt with by the monetary policy of that particular country which has its limitations and demands serious attention from not only the policymakers but also the public who would have to follow these policies.

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Electron Microscopy Physics Coursework

21 pages (5000 words) , Download 2 , Coursework

Images in TEM are obtained by focusing an electron beam on the specimen. The electrons are absorbed, transmitted, scattered or backscattered. Depending on the kind of image required by the operator, either the transmitted electrons (called direct beam) or the scattered electrons (called diffracted beam) is selected.

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Scanning Electron Microscopy Physics Coursework

15 pages (3750 words) , Download 4 , Coursework

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The above micrographs represent a Secondary electron image (SE) and a Backscatter electron image (BSE) of the same region of an asbestos sample.The SE image appears more three dimensional than the BSE image. The cluster of fibers at the center in the SE image appears more rounded, while the one in the BSE appears flat.

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Physics Essays