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Physics Essay

Materials for a Business Jet
For aluminum 2124, used T351 condition/temper. Kevlar K49 used for density, shear strength and modulus, and yield strength. For density and ultimate tensile strength, used Dupont Kevlar 49 Aramid fiber. For CFRP, data is for Type P-VSB-32 (Union Carbide) carbon fibers.Aluminum alloy 7475 has lower impurity limits than 7075. Aluminum 7475 is used for aircraft structures because of its good fracture toughness. As noted in table 2, fracture toughness is greater in the 2xxx series aluminum alloys
Pages: 5 (1250 words), Essay
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Riblets and Tripwires and their role in reducing drag over underwater aerofoils
Tripwires: Tripwires, also known as turbulators, are thin wires that are attached at the hull of a vehicle or at the nose of a submarine or aircraft. These are used to “trip” or disturb the boundary layer and introduce turbulence, thereby reducing pressure drag. These are “one of the oldest and most used methods of turbulence stimulation”.To
Pages: 4 (1000 words), Essay
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Paraphrasing for all the answering of tutorial question
From here it goes through another amplifier and enters the receiver unit to be translated into a lower baseband frequency. It is then filtered and digitized to become part of the central computer’s memory.Since the construction of magnets is prone to human error and can’t be absolutely perfect, a minor deviation of coil positioning or permanent magnet faces is enough to generate impurities which have to remove by shimming. For example, when magnets are energized, the impact of the internal
Pages: 9 (2250 words), Essay
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Electric and megnetic fields
Since the electric power has been of chief significance to living, humans have engaged themselves into conception of possibilities to obtain higher potentials and benefits with electric and magnetic fields given constant exposure to them. Scientists have long understood even during the 19th century that there exists special connection between electrical fields and magnetic fields which may be experienced everywhere on earth. Moving electric charge (electric current) can induce magnetic field.
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Physics Assignment
If the correlation coefficient is negative, then one variable is going down as the other variable goes up. The correlation coefficient is the same if you swap the order of the variables you are considering.If the correlation coefficient measures 1, then the two variables are maximally correlated. What this means in our case, is that the position x and the time t are maximally correlated, in other words, there is a strong relationship between them so that if one goes up the other will do the
Pages: 7 (1750 words), Essay
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Science of Sustainability
The problem, however, is that this is not truly sustainable. The only things that are truly sustainable are those that are consumed at the same rate as the earth produces them or slightly slower – and things like coal and oil will never fit this description. True, long-term sustainability must come from renewability, while short-term sustainability can come from almost any resource, depending on the time frame.Many things can be done at a variety of levels in order to promote
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Geo Lab Questions
According to experts in the field of geography, there are several types of features that are formed through either wave or wind action. Research proves that there are both soft and hard features that are formed along the coastline (Jervis, 2009). The aspect of softness or hardness of a physical feature formed at the coastline mainly depends on certain phenomenon. For example, a spit can be identified as a soft feature that is mostly found at the coastline. In most cases, spits are located at
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MRI Gradient Coils
Researcher wrote in the second paragraph of the abstract, “Human research magnets of 7T and 8T are operation in several site worldwide.” However, it is quite disturbing why these types of magnets were mentioned in the abstract but nothing in the research paper discussed these things. Said sentence therefore appears to be irrelevant. Thus, the researcher must either discuss these types of magnets in the body of the paper or better yet, totally delete the above-quoted sentence.In addition,
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Fast Imaging Techniques (MRI)
Segmentation is a new concept that has significantly made it possible to use EPI on most of the conventional imaging systems where constraints related to signal to noise would have otherwise prevented EPI. Segmenting EPI is increasingly becoming more important to a number of its properties that ensure improved image quality as compared to the conventional single shot EPI. For example, one of the potential benefits of segmentation is that it allows EPI to be able to effectively run on the
Pages: 6 (1500 words), Essay
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Once you have chosen a topic, plan your essay to explore the question and develop a conclusion. The following three points are an example organization for your essay: (1) An introduction and motivation should describe the main question or topic, and brief
High temperatures tend to destroy the magnetic fields.There are lots of similarities between magnetic polarization effects and polarization effects. The electric dipole moments of electric dipole usually start the behavior of dielectric materials. The domain moments in the dipole are aligned causing a form of polarization. Therefore I can say that polarization is the process where the dipoles align themselves in the magnetic domain. This polarization produces a resultant field that appends the
Pages: 4 (1000 words), Essay
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Planet Earth Museum Paper
The half-life of carbon is the process used by the geologist and the scientist indetermination of the isotopes of an element so that the age of the rock can be determined.Climate and the climatic change are caused by the continued human activity in the exhaustion of the earth resources. The man’s activity causes global warming hence the change in climate. The ocean circulation affects climate since they cause the sea and the land breezes which cause convectional rainfall. This has an effect
Pages: 5 (1250 words), Essay
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Sustainable Energy Applications Discuss Solar Energy
1860 and the First World War, when a wide range of techniques were established to generate steam by obtaining sun’s heat so as to run the irrigation pumps and engines (4). In 1954, at Bell Labs in the United States, Solar PV cells were used for generating electricity in space satellites (Timilsina et al.The energy provided by the sun can be directly collected and used to make high temperature steam, i. more than 1000 C, and low temperature steam, i. less than 1000 C (Energy Technology Fact
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Physics assignment
The hanging mass is attached at the end of the string to provide tension. When a horizontal pick is used to pluck the string just at the pulley, a pulse is created in the string and travels along it in form of a disturbance. A timer is started by the pulse created in the wire by the plucking effect. The timer continues recording the time until the traveling pulse reaches the sensor, which stops it. When the mass attached to the other end of the string is changed, the time taken by the pulse to
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Analysis of the movie Gattaca
A hot contest between the valid and the invalids who aims to achieve success in the society genetic discrimination stands out with clear visibility.The ethical dilemma and interpretations that surrounds the film Gattaca, however, are numerous. The greatest concern asks the question of how persons ought to be judged in the society. Should these judgments be based on individuals’ ambitions, interests, desires that he or she values in life or they be based on the genetic constitution. The
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Geological hazards in the area Aci Castello in sicily in Italy
There study is also significant in having practical interventions and approaches to dealing with what has become infamous recent volcano eruption activity at Mount Etna. The report therefore aims to critically analyse volcanoes at Aci Castello, particularly the infamous Mount Etna with the purpose of identifying the trend of activities of these volcanoes so that necessary geological precautions could be taken at these. This will be achieved by undertaking both field and literature research of
Pages: 8 (2000 words), Essay
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Short Essay Response
As the Brundtland report summarizes: “Thus today’s environmental challenges arise both from the lack of development and from the unintended consequences of some forms of economic growth” (WCED 354). In urban design, it means converting agricultural areas to manufacturing/commercial/residential/entertainment sites and creating high-rise cities where population is more compact and where resources are swiftly consumed. Furthermore, the free-market philosophy is not without its negative
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TO WHAT EXTENT CAN FAMINE BE PREVENTED?
These practices had just resulted into severe pain and suffering amongst the large population in Africa (Curtis, Hubbard & Shepherd, 1998). There is, therefore, an urgent need to try and not to stop at nothing but to develop proactive mechanisms. These mechanisms include actions such as incentives, subsidies as well grand and donations amongst the LDCs Agricultural and industrial sectors to increase the productivities.To start with, two serious approaches to prevention particularly in African
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
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Physics of forces and types of forces in the mechaincal energy and thermal energy involved including why and how newtons laws are in and satisfied in the operation of a steam turbine pump.
These impulse turbines are made up of rings of nozzles followed by rings of blades. Notably, high pressure, high energy steam is allowed into the nozzles then it is let into a region of lower pressure, high velocity in a different direction. As a result, the changing direction and high velocity produce impulsive force that acts in the direction of rotation of the turbines. Thus according to Newtons second law of motion, the rate of change in momentum is directly proportional to the external
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Positron emission tomography
When the positrons arrive at thermal energies, they begin connecting with electrons either by annihilation, which produces two 511 keV photons that are anti-parallel in the positronís frame, or through development of a hydrogen-like orbiting couple known as positronium. At its foundation condition, positronium has two types’ of- ortho-positronium, where the spins of the electron and positron are parallel, and para-positronium, where the spins are anti-parallel. However, Para-positronium
Pages: 6 (1500 words), Essay
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