Physics - 4366 Words

1 aky a A glass fibre of length 0.24 m and area of cross-section 7.9 Ãâ€" 10–7 m2 is tested until it breaks. The variation with load F of the extension x of the fibre is shown in Fig. 4.1. 4 x / 10–4 m nd ra Sh 3 ha 2 0 40 20 yS 0 aji tC 1 60 80 F/N db Fig. 4.1 rra ng e (a) State whether glass is ductile, brittle or polymeric. ......................................................................................................................................[1] (b) Use Fig. 4.1 to determine, for this sample of glass, the ultimate tensile stress, ultimate tensile stress = ........................................... Pa [2] mp ile da nd rea (i) Co 1†¦show more content†¦2.2. aji tC 4 compression / cm db yS 3 rra ng e 2 0 10 da nd 0 rea 1 20 30 40 weight / N Fig. 2.2 The elastic limit of the spring has not been exceeded. Determine the spring constant k of the spring. mp ile (a) (i) Co 3 k = ........................................... N m–1 [2]  © UCLES 2008 9702/02/M/J/08 For Examiner’s Use 6 Deduce that the strain energy stored in the spring is 0.49 J for a compression of 3.5 cm. nd ra Sh aky a (ii) [2] aji tC thread spring trolley mass 2400g db yS trolley mass 800g ha (b) Two trolleys, of masses 800 g and 2400 g, are free to move on a horizontal table. The spring in (a) is placed between the trolleys and the trolleys are tied together using thread so that the compression of the spring is 3.5 cm, as shown in Fig. 2.3. rra ng e Fig. 2.3 Initially, the trolleys are not moving. The thread is then cut and the trolleys move apart. (i) Deduce that the ratio mp ile da nd is equal to 3.0. rea speed of trolley of mass 800 g speed of trolley of mass 2400 g Co [2]  © UCLES 2008 9702/02/M/J/08 For Examiner’s Use 7 Use the answers in (a)(ii) and (b)(i) to calculate the speed of the trolley of mass 800 g. nd ra Sh aky a (ii) Co mp ile da nd rea rra ng e db yS aji tC ha speed =Show MoreRelatedPhysics And Physics Of Molecular Levels1109 Words   |  5 Pagesconsider interaction within a molecule, which had three bodies at least, in terms of quantum and relativistic laws. Facing the fascinating, but, daunting goal, I would have to take step by step to find a practical path. Even I had taken theoretical physics courses and was familiar with special relativity, I did not know much about micro-scale theoretical work. â€Å"Define a problem is the first step for any project. If you are able to define the problem precisely, you are a half way to solve it,† professorRead More Physics in Sports Essay1462 Words   |  6 PagesPhysics in Sports nbsp;nbsp;nbsp;nbsp;nbsp;When many people think of sports, the topic of physics doesnt always come to mind. They usually dont think about connecting athletics with academics. In reality math, science, and especially physics, tie into every aspect of sports. Sports are a commonality that brings nations together, Soccer, known as football to most of the world, is said to an unspoken language, which unties people from different lands through a passion to play a game. AthleticsRead MoreThe History of Physics Essay1534 Words   |  7 PagesThe History of Physics In order to attempt to trace the origins of the modern science that we now refer to as â€Å"physics,† we must begin with the origin of the term itself. Taken from the Greek word â€Å"physika† meaning growth or nature, physics most obviously began as the intelligent study of the human environment (Webster 393). From superstition and religious practices, the foundation of all other sciences was born. These concepts have subsequently grown into what we regardRead MorePhysics Of The Impossible By. Kaku1468 Words   |  6 PagesThe book â€Å"Physics of the Impossible† was written by Japanese American theoretical physicist Michio Kaku. Kaku generally writes books about physics or physics related topics. Among his three New Work Times best seller, Physics of Impossible is one in which Kaku utilizes discourse of theoretical advancements to acquaint themes of basic material science with the reader. In this book, Kaku represents physics in various ways so that the reader understands the significance of physics and implement in his/herRead MorePhysics by Aristotle Essay547 Words   |  3 PagesPhysics by Aristotle Aristotle begins by describing the meaning of the words â€Å"nature† and â€Å"natural.† He identifies the meaning of each, and also explains some common phrases which include each of the words. He says all natural things have a principle of motion and of stationariness. He also says that natural things are composed of stone, earth, or a mixture of the two. According to him, artificial products do not possess the source of their own production. For example, the natureRead MoreThe Physics Of Albert Einstein1284 Words   |  6 Pageswould also think that one who drops out of high school may not go anywhere in life. Einstein won a Nobel Prize in Physics, a Gold Medal of The Royal Astronomical Society, and many other awards. Even if Einstein never even finished high school, his creation of the equation E = mc2, theory of relativity, and theory of light led the way to him becoming known as the father of modern physics. Albert Einstein was Born in Ulm, Wà ¼rttemberg, Germany in 1879. He was the son of Hermann Einstein, a salesman andRead MoreReflection On Physics1032 Words   |  5 Pageshave always loved physics. I didn’t. In fact, I hated physics in the 9th and 10th grades, not because I didn’t like doing science or was bad at mathematics, but because I was unable to understand the equations, that appeared to come from nowhere. According to my physics teacher, both of the equations for a vertically thrown ball y = 1/2gt 2 + v 0 t and y = −1/2gt 2 + v 0 t were correct, which didn’t make much sense to me because the signs were different! However, my view on physics changed dramaticallyRead MoreEssay on A Century of Physics3573 Words   |  15 PagesA Century of Physics By the end of the nineteenth century after more than two thousand years of intellectual struggle that began with the Greek philosophers, physical scientists had reason to believe that they were beginning to understand the universe. Their theories of matter and energy, of electricity and magnetism, of heat and sound and light were confirmed in laboratories throughout the world with increasing precision. Experimentation was the method and mathematics the language of aRead MorePhysics Of String Theory Of Physics1543 Words   |  7 Pagesnumber of excitation modes - that are the elementary particles observed. the strings have tension of 1/(2 p a’) strings are approximately the planck length (smallest possible size of black hole) 10^(-33) cm A quantum Theory of Gravity is needed In physics there are two main central theories. The first is Einstein’s theories of relativity. The second is quantum mechanics. Einstein’s theories of relativity describe gravity but does not include quantum effects. Quantum mechanics describes the universeRead MoreEssay about Physics in Cartoons555 Words   |  3 PagesPhysics in Cartoons The cartoon that was analyzed by our group was the Disney movie The Emperors New Groove. This movie is very entertaining and comical, however when a closer look is taken at the use (or lack thereof) of Physics Laws, many errors can be found. The following are four examples of situations in The Emperors New Groove where the laws of physics were over looked and ignored in the creation of the scene. #1 (19:05-19:48) After Emperor Kusko is

The As A Tyrant Who Held A Reign Of Terror - 1478 Words

There’s always something watching over everyone, seeing the unprincipled and unscrupulous mistakes, flaws, sins, and immorality. It’s easy to try and escape judgment and punishment for one’s sins, but it will all come back to them in due time. Karma is prevalent in numerous religions and candidly means good actions reap rewards, whereas malevolent actions result in future suffering and problems. Historically speaking, there have been many cases where unscrupulous actions have come back to bite. Maximilien de Robespierre became a tyrant who held a ‘reign of terror†, guillotining extravagant amounts of people, many of them being innocent. Ironically enough he was killed via guillotine. Diane de Poitiers held an affair with King Henry II of France for many years until his death. Because of that she was sent into exile after Henry’s death by his wife, Catherine de Medici. Some may call these coincidences and whether one believes in karma or not doe s not matter, as there are always consequences for one’s actions. People can slowly lose themselves once they get caught up in an aristocratic society filled with money, lust, and glory. In The Great Gatsby by F. Scott Fitzgerald, the eyes of Dr. T.J. Eckleburg within the Valley of Ashes are symbolic as to how the characters deteriorate in the wasteland of a society made up of gentry. The valley of ashes is representative of the destroyed and decayed nobility. The valley of ashes is a place that at one point was in an at leastShow MoreRelatedKing of the Zulu Tribe, Shaka: Great Leader or Bloodthirsty Tyrant?1614 Words   |  7 PagesBloodthirsty Tyrant? One of the most documented African tribes is that of the Zulu kingdom. The rise and fall of the Zulu kingdom, in one way or another, relates to the most famous leader of the Zulu Empire, Shaka. Shaka brought the Zulu tribe from the bottom to the top, and only until his assassination in 1828 did the Zulu kingdom see a downfall in power and organization. Based on facts presented in case studies, as well as observing theories of state formation, it will determined if Shaka’s reign of powerRead MoreRobespierre And The Revolution By Oscar E. Segovia1568 Words   |  7 PagesEstate in the Estates General. He strongly advocated against tyranny but that would all change after he gained leadership of the Committee of Public Safety. France suffered from tyranny under Robespierre’s leadership, which would be known as the Reign of Terror, because of his flawed ideas and blinded perspective during the Revolution. Robespierre was born in Arras, France in 1758. His childhood was cut short after his mother passed away when he was six years old. He was adopted by older relativesRead More The French Revolution Essay5811 Words   |  24 Pagestaxes. Repudiating the debt was out of the question because governments have to be able to borrow money. They need to borrow to bridge the gap between the yearly arrival of tax revenues. The only course open was to find new taxation. The problem was who to tax? The peasants and artisans were already taxed to the limit. New taxes would have to be put on the aristocracy and the clergy. The Parlement registered new edicts and the nobility controlled it. The problem would be getting the taxes through theRead MoreEssay about Bloody Queen Mary: Whats in a Name?1072 Words   |  5 PagesDuring her reign of 5 years, Queen Mary I went to drastic measures to return England to the Roman Catholic faith. Her attempts however were short-lived as they were quickly revers ed by her successor and half-sister, Queen Elizabeth I. It was also during the reign of Queen Elizabeth I that Queen Mary I was unfairly given the nickname, Bloody Queen Mary. Therefore Queen Mary did not deserve this nickname because it was a bias depiction of her through the eyes of Queen Elizabeth the protestant who laterRead More Robinson Crusoe Essay850 Words   |  4 Pagesof society. In Daniel Defoe’s early Eighteenth Century novel, Robinson Crusoe, God makes the laws, gives out the punishments, and creates the terror. By the end of the century, the French Revolution and the Reign of Terror announce to the world that society is taking over the role of God and now people will make laws, give out punishments, and incite terror. Early Eighteenth Century novel, Robinson Crusoe, shows the development of a new self, one conflicted with the idea of both relying on God’s ProvidenceRead MoreRobespierre - Evil or Virtuous?2439 Words   |  10 PagesRobespierre: Evil or Virtuous? â€Å"Virtue, without which terror is destructive; terror, without which virtue is impotent† (Zizek). Maximilien Robespierre said this in a speech when people were starting to question his judgment. He believed that to be only virtuous was difficult, and without some terror added in, the world would go into turmoil as no one would follow their leader. A leader has to be strong and forceful, and sometimes even terrifying to get their point across, or to get people to followRead MoreKim Jong-Il: the Reign of Terror2921 Words   |  12 PagesEnglish 205 20 May 2013 Kim Jong-Il’s Reign There is little known about the true inside of North Korea, but what we do know is that yields a powerful dictatorship across its people. This dictatorship all began less than 100 years ago and has a very short history. A brief description of Korea’s history, from History.com, shows how the country split into two completely different countries: Japan annexed the Korean peninsula in 1910, and the country spent the next 35 years under Japanese militaryRead MoreThe French Revolution And French Revolutions2006 Words   |  9 Pageswould have to recall an ancient assembly, the Estates-General, which had not met for 175 years. Restlessness, uneasiness and an all-around displeasure broke out among the middle class and that led to the Estates-General creating the National Assembly, who expected to improve the current government and demanded reform. The king brought in troops to try to disband the National Assembly, he also placed troops between the palace and the City, and when the citizens of Paris became aware they rallied and rebelledRead MoreNazi Germany as a Totalitarian State Essay1473 Words   |  6 Pagesa totalitarian state, which will permeate all aspects of public life In reality to put this into practise was a lot more difficult. From the outside, people assume that the Nazis had brainwashed every German citizen during their reign. By booking more closely, through Germanys archives we can see a better picture of what Germany was really like. Totalitarian states must have a number of things, primarily being one main leader, government control of all aspects of lifeRead MoreRobespierre, The French Revolution And The Symbol Of Evil Essay2033 Words   |  9 Pagesremembered with enduring hatred for what one accomplished and stood for during life. Certainly, there are many who deserve to be remembered with spite – people whose beliefs and actions were unacceptable whether evaluated in a modern context or that of their own period. And yet still some are hated for centuries, mainly due to having made powerful enemies while alive. Maximilien Robespierre, who is often regarded as the leading figure of the French Revolution and the symbol of violent excess during that

Igneous Rock Sample Essay Example For Students

Igneous Rock Sample Essay This article needs extra commendations for confirmation. Please assist better this article by adding commendations to dependable beginnings. Unsourced stuff may be challenged and removed. ( November 2012 ) Geologic states of the universe ( USGS )ShieldPlatformOrogenBasinLarge pyrogenic stateExtended crustOceanic crust:0–20 Ma20–65 Ma gt ; 65 MaIgneous stone ( derived from the Latin word ignis intending fire ) is one of the three chief stone types. the others being sedimentary and metamorphous stone. Igneous stone is formed through the chilling and hardening of magma or lava. Igneous stone may organize with or without crystallisation. either below the surface as intrusive ( irruptive ) stones or on the surface as extrusive ( volcanic ) stones. This magma can be derived from partial thaws of preexistent stones in either a planet’s mantle or crust. Typically. the thaw is caused by one or more of three procedures: an addition in temperature. a lessening in force per unit area. or a alteration in composing. Over 700 types of pyrogenic stones have been described. most of them holding formed beneath the surface of Earth’s crust. Igneous and metamorphous stones make up 90-95 % of the top 16 kilometer of the Earth’s crust by volume. Igneous stones are geologically of import because: their minerals and planetary chemical science give information about the composing of the mantle. from which some pyrogenic stones are extracted. and the temperature and force per unit area conditions that allowed this extraction. and/or of other preexistent stone that melted ; their absolute ages can be obtained from assorted signifiers of radiometric dating and therefore can be compared to adjacent geological strata. leting a clip sequence of events ; their characteristics are normally characteristic of a specific tectonic environment. leting tectonic reconstitutions ( see home base tectonics ) ; in some particular fortunes they host of import mineral sedimentations ( ores ) : for illustration. tungsten. Sn. and uranium are normally associated with granites and diorites. whereas ores of Cr and Pt are normally associated w ith gabbros. Morphology and puting In footings of manners of happening. pyrogenic stones can be either intrusive ( irruptive ) . extrusive ( volcanic ) or hypabyssal. Intrusive Close-up of granite ( an intrusive pyrogenic stone ) exposed in Chennai. India. Intrusive pyrogenic stones are formed from magma that cools and solidifies within the crust of a planet. Surrounded by pre-existing stone ( called state stone ) . the magma cools easy. and as a consequence these stones are harsh grained. The mineral grains in such stones can by and large be identified with the bare oculus. Intrusive stones can besides be classified harmonizing to the form and size of the intrusive organic structure and its relation to the other formations into which it intrudes. Typical intrusive formations are batholiths. stocks. laccoliths. Sillss and butchs. The cardinal nucleuss of major mountain ranges consist of intrusive pyrogenic stones. normally granite. When exposed by eroding. these nucleuss ( called batholites ) may busy immense countries of the Earth’s surface. Coarse grained intrusive pyrogenic stones which form at deepness within the crust are termed as abyssal ; int rusive pyrogenic stones which form near the surface are termed hypabyssal. Extrusive Extrusive pyrogenic stone is made from lava released by vents Basalt ( an extrusive pyrogenic stone in this instance ) ; visible radiation coloured paths show the way of lava flow. Extrusive pyrogenic stones are formed at the crust’s surface as a consequence of the partial thaw of stones within the mantle and crust. Extrusive Igneous stones cool and solidify quicker than intrusive pyrogenic stones. Since the stones cool really rapidly. they are all right grained. The liquid stone. with or without suspended crystals and gas bubbles. is called magma. It rises because it is less heavy than the stone from which it was created. When magma reaches the surface from beneath H2O or air. it is called lava. Volcanic eruptions of vents into air are termed subaerial. whereas those happening underneath the ocean are termed pigboat. Black tobacco users and mid-ocean ridge basalt are illustrations of undersea volcanic activity. The volume of extrusive stone erupted yearly by vents varies with home base tectonic scene. Extrusive stone is produced in the undermentioned proportions: divergent boundary: 73 % convergent boundary ( subduction zone ) : 15 % hot spot: 12 % . My Family History : My Grandmother EssayGabbro specimen demoing phaneritic texture ; Rock Creek Canyon. eastern Sierra Nevada. California ; scale saloon is 2. 0 centimeter. Chief article: Rock microstructure Texture is an of import standard for the naming of volcanic stones. The texture of volcanic stones. including the size. form. orientation. and distribution of mineral grains and the intergrain relationships. will find whether the stone is termed a tufa. a pyroclastic lava or a simple lava. However. the texture is merely a low-level portion of sorting volcanic stones. as most frequently at that place needs to be chemical information gleaned from stones with highly powdered groundmass or from airfall tufas. which may be formed from volcanic ash. Textural standards are less critical in sorting intrusive stones where the bulk of minerals will be seeable to the bare oculus or at least utilizing a manus lens. amplifying glass or microscope. Irruptive stones tend besides to be less texturally varied and less prone to deriving structural cloths. Textural footings can be used to distinguish different intrusive stages of big batholiths. for case porphyritic borders to big intrusive organic str uctures. porphyry stocks and subvolcanic butchs ( apophyses ) . Mineralogical categorization is used most frequently to sort irruptive stones. Chemical categorizations are preferred to sort volcanic stones. with phenocryst species used as a prefix. e. g. â€Å"olivine-bearing picrite† or â€Å"orthoclase-phyric rhyolite† . see besides List of stone textures and Igneous textures Basic categorization strategy for pyrogenic stones on their mineralogy. If the approximative volume fractions of minerals in the stone are known the stone name and silicon oxide content can be read off the diagram. This is non an exact method because the categorization of pyrogenic stones besides depends on other constituents than silicon oxide. yet in most instances it is a good first conjecture. Chemical categorization Igneous stones can be classified harmonizing to chemical or mineralogical parametric quantities: Chemical: entire alkali-silica content ( TAS diagram ) for volcanic stone categorization used when modal or mineralogic informations is unavailable: felsic pyrogenic stones incorporating a high silicon oxide content. greater than 63 % SiO2 ( examples granite and rhyolite ) intermediate pyrogenic stones incorporating between 52 – 63 % SiO2 ( illustration andesite and dacite ) mafic pyrogenic stones have low silicon oxide 45 – 52 % and typically high Fe – Mg content ( illustration gabbro and basalt ) ultramafic stone pyrogenic stones with less than 45 % silicon oxide. ( examples picrite. komatiite and peridotite ) alkalic pyrogenic stones with 5 – 15 % base ( K2O + Na2O ) content or with a molar ratio of base to silica greater than 1:6. ( examples phonolite and trachyte ) Chemical categorization besides extends to distinguishing stones which are chemically simila r harmonizing to the TAS diagram. for case ; Ultrapotassic ; stones incorporating grinder K2O/Na2O gt ; 3 Peralkaline ; stones incorporating grinder ( K2O + Na2O ) / Al2O3 gt ; 1Peraluminous ; stones incorporating grinder ( K2O + Na2O ) / Al2O3

The Wallace Group Case Study Problems and Solutions Essay Example

The Wallace Group Case Study: Problems and Solutions Paper The Wallace Group has maintained, for quite some time, Mr.. Wallace as president of each of the companys entities. This, however, is leading to some problems. With Mr.. Wallace in charge of all operations he lost sight of problems and resolutions. It is necessary to bring into play a strategic management plan. With a strategic management plan the company will employ the Input and commitment to lower level management (Wheeled et al, 2004). The top management will be responsible for forming groups of teams that will provide accessory plans to the company such as financial planning, and forecast-based financial planning, V-Rutherford these teams can implement and evaluate issues. Lastly, these teams can continually work on different scenarios throughout the year and problem solve as needs arise, contrasted to the out-dated five year plan. The Wallace group needs to reformat their corporate sweater as well. The corporate strategy currently in place is one that is useless to the growth Of the company. In order to maintain a foothold in any of the three industries, electronics, plastics, and chemicals, The Wallace Group must begin by re- designating presidents and vise-presidents of the individual entities using a hierarchy strategy. Currently, Mr.. Wallace is president Of all three entities. If change is going to occur, Mr.. Wallace needs to bring in new Presidents for each of these companies. Mr.. Wallace can, if he so pleases, maintain Presidency of one of the three companies. However, for growth purposes he should allow new, young blood to take the position of President of the remaining two companies to move the companies forward. We will write a custom essay sample on The Wallace Group Case Study: Problems and Solutions specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on The Wallace Group Case Study: Problems and Solutions specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on The Wallace Group Case Study: Problems and Solutions specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Mr.. Wallace may maintain a title of Chairman, thereby not giving up any power or forfeiting any of his shares. Once new presidents are found, and they possess a forward thinking attitude, the company should begin to see growth. However, the problems do not end here. Another issue facing The Wallace Group is their need to evaluate current performance results. According to a letter to the shareholders, the dividends are less than the year prior, which were less than the year prior to that. It is uncertain what the dividends were this year, but the dividends were . 5 last year and . 25 two years ago, which means that the dividends are on a decline. The Wallace Group needs to begin generating more profits by, as previously stated, evaluating their performance results. Questions such as: What can we do to cut back costs? and how can we reorganize our corporate staff in all three entities? Will help the company begin forward growth? Lastly, another problem The Wallace Group needs to address is the strategic vision. Presently, there is a mood to lethargy and drift within The Wallace Group Wheeled et a, 2004), If The Wallace Group wishes to lift this tiredness from the company, it needs to develop a plan that helps employees feel accomplished and important. Top Management needs to project a feeling of passion onto the members of their groups. With management motivated and eager, the employees will become the same. Fifth Wallace Group is Willing to put these terms into action a turn around should begin. Mr.. Wallace will be quite pleased vivid the company growth and employee eagerness.