Investigating a simple pendulum Essay Example for Free

Investigating a simple pendulum Essay In a way, I think that my experiment was successful. Most people would say that it would not have been a successful experiment if their results did not exactly match some of their predictions, just like my results, but I think that my experiment was a successful one because it made me realise that results will not always match predictions and it is fine to get results different from those you expected because it gives you more things to investigate when doing your evaluation. I think that my experiment was quite a fair one seeing as each test was done three times and an average result was taken. When I was testing the variables, length, mass and amplitude, I only tested one at a time, keeping the other two variables the same. I performed the experiment in the centre of the work bench, so the pendulum could not hit anyone passing by or and walls or other objects. As I said earlier in my obtaining evidence part of this coursework I think my results may have been slightly inaccurate seeing as the precision of my results depended on my hand-eye coordination which could not have been the same every time I judged when to stop the stopwatch. I think that my results would be quite easy to reproduce seeing as they all follow the expected patterns and were all taken three times and an average was also taken. I will now be attempting to explain why I think that my results did not match those of the equation: One of the reasons for this may be that my results could have been slightly inaccurate. Another reason may have been that the apparatus that I used was not as accurate as it could have been. If we look at the table of results for the formula, we can see that as the length increases, the difference between the actual time taken for one swing of the pendulum and the formula result gets closer. This could mean that the formula is meant for slightly larger lengths than 10 and 15 centimetres, maybe something such as one metre and above. Or it could mean that my results are inaccurate, especially those with shorter lengths, seeing as they swing faster and are obviously harder to get accurate results for. And now I will be attempting to explain why I think that the formula: , did not give a constant result. The reasons are the same as the ones for the above formula, that my results may have been slightly inaccurate and that the apparatus I used may also have been inaccurate. And again, if we look at my table of results, the results of the formula seem to get closer to a constant as the length increases. This could mean that the formula is meant to be used for slightly larger lengths than those that I investigated or it could mean that my results are slightly inaccurate, again especially with those smaller lengths, seeing as they are harder to time as they swing a lot quicker than the larger lengths. If I had to do the experiment again, I would use some different equipment and I would only investigate length as a variable seeing as I now know that it is the only variable that affects the time taken for one swing of the pendulum. The piece of equipment that I would want to change most would be the time measuring device that I used. A good time measuring device would ensure both accurate and reliable results, which is what every experiment needs to be truly successful. The best device I can think of would be a light sensitive one which starts a timer when the beam of light is broken, by the string passing through it, and stops it when the beam is broken again. Using this method would not only ensure accurate and reliable results, but it would allow me to get the time taken for one swing only and not the average of ten swings divided by ten. But such a piece of equipment would be very expensive and would also be very hard to set up, so I therefore think that it would not be possible to use a piece of equipment like the one described above. From looking at my results, I would also change the lengths of the strings that I would time, seeing as when I compared my results to those given by the formulas, the shortest lengths of string gave the most out of place results. I would probably test lengths of around one metre to one and a half metres. When I got these results I would also compare them to the two formulas I have used throughout this coursework. If I had more time I probably would have done each test five times instead of three to be more sure of reliable and accurate results. I would have also tested a wider range of lengths and then I would have been able to see if my predictions were totally correct or whether they were slightly wrong. From testing more lengths I would also have been able to find out whether the formula: , worked and also whether the formula: , gave a constant result. And just as a final thought, even though I know it would not be possible, I would like to investigate the effect that gravity would have on the time for one swing of the pendulum. I think that gravity would have an effect on the time taken for one swing of the pendulum seeing as it features in the same equation that helped me to predict that only length would effect the time taken for one swing of a simple pendulum.

Just What the Doctor Ordered :: Physicians Medicine Medical Autopsies Papers

Just What the Doctor Ordered â€Å"Hurry Dad, follow that ambulance!† I shouted as the sirens went racing by like spinning tornados. The sound of sirens always excited me and caught my curiosity. I wanted to be at the scene and to know exactly what had happened to the people involved. The next day I would anxiously wait for the newspaper to arrive, so I could read what happened. Since my dad is a police officer, I have always been intrigued by his stories of â€Å"cops and robbers.† As a result, these interests have influenced my decision to become a doctor. You may be wondering what there interests have to do with my being a doctor and why I have chosen this career path rather than that of a paramedic, a police officer, or even a news reporter. That is easy. As far back as I can remember, I have been fascinated by anything having to do with doctors. It is for all my interests in the medical field that I have decided to become a doctor. The field of medicine that would allow me to combine all these fascinations is forensic pathology. As a forensic pathologist, I will be working firsthand with investigators and the hospitals in cases where patients have died of trauma or unknown causes. Investigators will have to share all the details of the crime scenes or accidents with me. Then, I will get to play the role of Nancy Drew by putting all the pieces together to determine the actual cause of death. I will try to find out exactly what happened to every one of my patients in their last minutes of life. I have always been intrigued by mysteries; therefore, I feel this career as a forensic pathologist will be perfect for me. It is important to enjoy one’s career, so this is an excellent choice for me because it will never become dull or boring. Each autopsy that I will perform will have its own story and a new mystery for me to solve. I know I will wake up every morning anxious to go to work to see what new findings I will discover that day. You probably are wondering how I can be so excited about p eople’s dying, but I do not look at it like that.

Pestle, Porter and SWOT analysis of Lukoil Essay

LUKOIL, a vertically integrated oil company, and carries out exploration, acquisition, integration and subsequent efficient development of oil and gas fields outside the Russian Federation to facilitate the transformation of LUKOIL into a transnational energy corporation. LUKOIL operates in 25 countries (the most major of them are Russia, Azerbaijan, USA, Georgia, Turkey and Czech Republic). Net income in 2013 is $3.105 billion. Basic earnings per share – $4.11. The Company’s 2012 net income rose by 6.2% and reached record $11,004 billion. EBITDA (earnings before interest, taxation, depreciation and amortization) rose by 1.7% and reached $18,915 billion. Sales revenues were $139,171 billion (+4.1% y-o-y). In 2013 Forbes estimated LUKOIL as #43 in Sales, #34 in Profit, #254 in Assets, #139 in Market value. According to these data we can assume, that LUKOIL is successful Russian company with a lot of strengths, like good prospects regarding financial indicators. And fortu nately, it doesn ´t need any financing. Usually, the company invests in different projects regarding environmental protection and  employee ´s support. 2. Mission and Vision Mission: â€Å"The Company’s mission consists in increasing shareholder value through the exploration and production of hydrocarbons outside Russia.† My vision of the situation is that company wants to be a reliable supplier of hydrocarbons on the international market. Moreover, Lukoil has a purpose to support economic growth and social stability in long-term prospects. Thus, it has some main aims such as to achieve reputation of a reliable and dependable hydrocarbon supplier in the world; to deliver high-quality petroleum products to end-users; to ensure long-term sustainable growth; to reach leading position on the market; My formulation of the mission: Lukoil as a company in the oil and gas industry using natural energy recourses is trying to be a leader in the international market by reducing costs, increasing operations and stabling social aspects. Vision: â€Å"The company wants to be world’s leader in oil and gas sector by first-class services to our customers, effective HR policy, reliable and positive image of the company, effective environmental policy, optimization of the operational efficiency, decrease of the operational costs, sustain high-profit level.† In conclusion, company’s mission determines a purpose within the organization; provides standards for allocating organizational resources; establishes a general organizational climate; shows purpose and direction. Consequently, mission and vision are clear and give a lot of advantage. 3. Macro-environment (PESTLE) At the beginning of this part, it is necessary to mention some relevant facts: Population in Russia: 139mln Area: 17mln sq. km Time zones: GMT +2 to +11 9th largest economy in the world in terms of GDP, reaching USD 2014,8 bn 2013 Exports and Imports exceed 50% GDP Highest GDP per capita among BRICS countries Winter Olympic Games 2014 in Sochi 2012 and FIFA World Cup 2018 are coming 1. GDP Figure 2.1 Real GDP As we can see on the Figure 2.1 Real GDP has a tendency to grow up. Moreover, the present value of Real GDP is about 2014.8 USD billion which is the highest point during the history. Real GDP had been increased up to more than 6% in comparison with the previous period Contemporary situation in economy, especially in Real GDP, shows the opportunity for a company to increase production, because higher GDP means higher consumer expenditures; in turn, it is an alleviating competitive pressure within industry, then it’s the potential for expansion. As we can see GDP is constantly growing that means an opportunity to have higher revenues for LUKOIL Company because people have a higher profits and respectively higher consumer expenditures. 2. Interest rate The interest rate in Russia was last recorded at 5.50 percent. Interest Rate in Russia is reported by the Central Bank of Russia. It is quite high interest rate in comparison with for instance European countries. The average interest rate in Europe is 0.25%. For LUKOIL it is a threat of decreasing the company’s sales, because during high interest rate potential consumers tend to spend less (borrowings become more expensive). Therefore the consumer purchasing power is quite low and company’s sales will be decreased. Figure 2.2 Russia interest rate 3. Inflation rate Figure 2.4 Russia inflation rate Figure 2.5 Petroleum price RUB per liter As we can see Figure 2.4 and Figure 2.5, the oil price and rate of inflation  are connected directly: when oil price goes up, the inflation follows in the same direction. We can explain it by that the oil is the major input in economy (oil is used for manufacturing and transportation). The inflation rate in Russia was recorded at 6.30 percent in October of 2013. It has a positive impact on Oil and Gas industry. LUKOIL can estimate future profit more accurate and eliminate several risks which effected by the oil price and inflation rate. 4. Unemployment rate Figure 2.5 Russia unemployment rate At the moment the rate is 5,5%. And the tendency has a declining character. Thus it could be opportunity to find high-qualified employees. There is a competition on a labor market. 5. Reservoirs of oil Russia is the first country in the world in crude oil production. Its share is 12%. This indicator makes the country attractive for the investors. Consequently, LUKOIL could use positive investment climate of Russia as the company’s benefit. 6. Taxes Nowadays there are three main taxes which have influence on economic in Russia: a) Corporate tax rate – 20% b) Personal income tax rate – 13% c) Sales tax rate – 18% Accordingly to these indicators the corporate tax rate is quite low in comparison with Japan – 38,01%, United Arab Emirates – 55%, US – 35%. Therefore, it is opportunity to increase a profit (low taxes increase net profit). We are analyzing oil and gas industry in Russia. Fortunately most of deposits are situated in cold geographical areas like Tyumen Region, called Extreme North or Far North. Government gives a lot of benefits like people who work there are used to receive an extra grade of payment, referred to as the â€Å"Northern Bonus†, as well as other benefits, including extra vacation, extra disability benefits, extra retirement benefits, and housing benefits. LUKOIL won’t increase outflow of money into pension funds  etc. 4. Technological factors (PESTLE) New technologies are an important competitive advantage of LUKOIL Group. Key technological aspects: 1. The company conducts R&D to develop new technologies and upgrade the existing ones. 2. Cooperation with national projects is actively developing, including the Skolkovo innovation project and the RUSNANO Corporation. 3. Great attention is paid to developing information technologies and improving business processes. 4. The total financing of scientific and technical works in 2012 amounted to US$ 150 million. It is opportunity to use own technology and ability to exclude costs for using technologies from elsewhere. 5. Environmental factors (PESTLE) Waste disposal Russia drowns in 60 million tons of garbage a year. It is serious problem in waste disposal issue. Today, only 11% of the whole volume is recycled. Unfortunately, it is substantial evidence of contemporary problem and the threat for environment. LUKOIL uses chemicals for production, which could be statutory restrictions by the government for environmental protection. It is the threat for company of activities’ restriction. Pollution Oil and Gas industry damages nature by pollution. Many risks occur like spilling of oil into the sea or into the ocean. In this case LUKOIL will pay damage to nature and spoil its reputation. Consequently, LUKOIL should take into account all risks and try to avoid them. Climate There is the dominance of the continental climate on the territory of the country. Russia faced to one serious problem during springs. It is flood. For oil industry it could be a relevant threat because it directly depends on transportation, for instance if roads are damaged it is becoming complicated to transport oil to different regions. 6. Political factors (PESTLE) Strictly speaking, two of the most dangerous threats are the high level of corruption and terrorism. High level of corruption Russia is ranked 127th out of 175 countries in Transparency International’s Corruption Perceptions Index in 2013. This score indicates the perceived level of public sector corruption in a country or territory. Terrorism There is a terrorist war aimed at destabilizing Russia politically and economically. Few weeks ago there was the 3rd terrorist attack in Volgograd during last 2 months. Membership in World Trade Organization In August 2012, Russia officially became a World Trade Organization member. Moreover, European Union contributes half of Russia trade flows. It is opportunity of simplified international market access with the purpose of trade and it is opportunity of hiring professional and administrative staff on fixed term contracts. Index of Economic Freedom Index of Economic Freedom in Russia is 51.3 out of 100 and it ranked as mostly unfree. These ranking means that the country is not attractive to do business and indicates a low possibility of obtaining investment. Thus, it is a threat for LUKOIL, it will be difficult to attract foreign investors. Protection of property rights It is an opportunity to protect LUKOIL’s innovations and to get patent. 7. Legal factors (PESTLE) The following laws of the Russian Federation form the main legal framework of the oil and gas industry: Constitution of the Russian Federation. Federal Law On Subsoil (Subsoil Law). Federal Law On Gas Supply in the Russian Federation (Gas Supply Law). Federal Law On Natural Monopolies. Federal Law On the Continental Shelf of the Russian Federation. Federal Law On Energy Saving and Energy Efficiency. Federal Law On Production Sharing Agreements. The following federal laws are also relevant to the legal framework of the natural resources industry of the Russian Federation: The Codes of the Russian Federation, including the Civil Code, Land Code, Water Code, Forest Code, Tax Code, Code on Administrative Violations and Criminal Code. Federal Law on Environmental Protection. Federal Law on Ecological Expertise. Supreme Council Regulations on the Procedure of Enactment of the Provisions on the Procedure of Licensing of the Subsoil Use of 1992 (Subsoil Use Licensing Regulations). The fundamental rights that are guaranteed to each Russian citizen are: All people shall be equal before the law and court. The State shall guarantee the equality of rights and freedoms of man and citizen, regardless of sex, race, nationality, language, origin, property and official status, place of residence, religion, convictions, membership of public associations, and also of other circumstances. All forms of limitations of human rights on social, racial, national, linguistic or religious grounds shall be banned. Man and woman shall enjoy equal rights and freedoms and have equal possibilities to exercise them. That means that Lukoil should take into account all this rights and keep it in mind when hiring the employees. 8. Socio-cultural factors (PESTLE) Age structure: 0-14 years: 15.7% (male 11,498,268/female 10,890,853) 15-24 years: 12.4% (male 9,031,057/female 8,662,557) 25-54 years: 45.8% (male 31,894,116/female 33,432,996) 55-64 years: 13.1% (male 7,926,184/female 10,711,347) 65 years and over: 13% (male 5,622,464/female 12,847,828) Most of population is in â€Å"capable of working† age. There is a competition on labor market. It is an opportunity to find employees corresponded to the standards of the company. Main religion: Christianity No requirement in the organization of labor. Thus, it is opportunity for LUKOIL to organize manufacture easily. High level of education Opportunity to attract well-qualified personnel. 9. Porter’s 5 Forces 1. Threat of New Entrants (Low) The LUKOIL is protected by high barriers to entry. Therefore the threat of new entrants is very low Huge amounts of capital expenditure are needed to perform the activities, for example the cost of refinery is almost $7 billion, the price of petrol station is $600 000. Large amounts of fixed are require for the development of oil fields and the installation of production facilities Costs for entering the industry: drilling costs, oilfield services, skilled labor, scientific research, materials and energy Only companies that operate economies of scale can survive, for example LUKOIL has been searching for oil since 1991. They invest a huge amount in up-to-date technologies making it difficult for new entrants to compete. Russia allows only national companies (or foreign companies in partnership with the national company) to exploit oil reservoirs, because it is owned by the state. It is barrier to entry. 2. Power of Suppliers (High) There are more then 100 suppliers in Russia; OAO â€Å"Gaztrubinvest†, TOO â€Å"KST Steel†, OAO â€Å"Severstal† are some of them. But their products are unique: tubular products, electric centrifugal pumps, oil cable, spurt steel framework. What gives them high bargaining power to dictate conditions. Moreover there are no substitutes, because the equipment needed for oil industry is special and impossible to replace. 3. Power of Buyers (Low) The main buyers are government and car owners. Product differentiation is low and customers don’t have opportunity to choose, only to buy. The market share of LUKOIL is almost 17% and it has contracts with government, because  they have a big chain of petrol stations. Consumers’ willingness to pay is the only power buyers have. Only very large buyers of oil such as big countries like US may influence oil price. Overall the buyer power is low 4. Threat of Substitutes (Low) At the moment customers can not switch from using oil and gas for other sources of energy. Only some European countries introduced renewable sources of energy instead of gas and oil. But there are many alternatives of energy: coal, solar, and wind power. Instead of this fact, we notice the demand for oil increases every year and there is no chance of decreasing in consumption. 5. Industry Rivalry (High) LUKOIL has 4 serious competitors: Rosneft (22% share of market), TNK-BP (14%), Surgutneftegaz (12%), Gazprom neft (6%). Even though there is a very strong rate of growth in oil and gas sector the rivalry remain small due to large switching costs, required investments for a new entrance, size of competitors, and political barriers. There is no place for small companies because of few market leaders. Also there is no possibility that competitors will offer a lower price. LUKOIL is second company that operates in Russia. The leader is Rosneft and its main competitor‎. LUKOIL has 17% share of Russian market, Rosneft 22% respectively. 10. SWOT analysis Strengths Weaknesses – 1st among the largest private oil and gas companies in the world. – 1.3% oil reserves of total reserves of oil worldwide – and second in terms of volume proven hydrocarbons reserves – about 2% of total global reserves; – Increase in oil index price in the world. – High entry barriers in the market, which eliminates small competitors. – Very sufficient technology of research and exploration. – Geographical business diversification (30 countries). – Large amount of oil reserves(17%) – Superior oil related technology. – Fully vertical and horizontal integrated. – Well supported by Russian government. – Constant increase in demand for gas and oil in Russia. – Constant research and innovation. – Production costs are relatively high compared with levels achieved by its main competitors. – The company’s communication both inside and outside is slow and bureaucratic. – Cost of environmental hazards. Opportunities Threats – Increase in oil and gas demand in Russia. – New exploration projects. – Investment into new businesses. – Iraq oil project. – Corruption. – Terrorism. – Floods. – Decrease sales (high interest rate). – Competition on the market Internal analysis Revenue $139.2 billion Employees 150.000 Recommendations Despite having a relatively good position in the regional market of Central and Eastern Europe, LUKOIL faces strong competition. In this context, LUKOIL should increase its market share through an offensive strategy of territorial expansion and to attract new customer segments. In addition, LUKOIL should ensure implementation of new technologies for modern and efficient production in terms of cost and continues its efforts to improve product quality and competitiveness, in order to meet international standards, including API and ACEA. Another important trend is the application of marketing strategies on the downstream, taking into account  the factors influencing consumer choice of stations: location, value for money, image, service, the existence of ancillary services. These strategies are reflected in the mix of marketing, in which both product and promotion play a central role.

Analysis Of Lorraine Hansberry s A Raisin And The Sun Essay

Act as Normal as Possible Poverty is always a great place to start a story, yet is there a lesson to be learned if the characters ends up right where they started? That is one of the several predicaments in the story â€Å"A Raisin in the Sun† by Afro American writer Lorraine Hansberry. The story takes place in Chicago during the late 1950’s the civil rights era, and the most prevalent question is what makes an African American different to any other person. The story dives deep into what that is through the use of money, as the family who is generally poor finds themselves with money to start a new life someplace new and fresh. One who does not have an equal opportunity or results, as others do resent the system for that reason that the system favors those that are â€Å"normal†. The author Lorraine Hansberry is able to write about these characters because she was once one of them. Lorraine Hansberry was the first African American woman to write and publish a screenplay that was perform ed on Broadway. Lorraine Hansberry also inspired other African American writers and paved the way for them as Steven Carter writes â€Å"the first black and youngest American to win the New York Drama Critics Circle Award, and a trailblazer whose success enabled other blacks to get their plays produced. Having exhilarated audiences for over twenty-five years by its profound affirmation of black life in all its diversity and creativity and of black strength through generations of struggle† (CarterShow MoreRelatedAn Analysis Of Lorraine Hansberry s A Raisin Of The Sun 914 Words   |  4 Pagesâ€Å"A Raisin in the Sun† is an autobiographical play written in 1950 by Lorraine Hansberry, an African American writer. The main characters are the Younger family, Mama, his son Walter and her daughter Beneatha. 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Everyone was very excited and were waiting for the money to beRead MoreCharacter Analysis Of Beneatha In A Raisin In The Sun1487 Words   |  6 PagesCharacter Analysis â€Å" A Raisin in the Sun† is a play written by Lorraine Hansberry about the life of an African American family during the era of segregation. The play starts off with the Younger family receiving a 10,000 dollar check from Mr. Younger’s insurance policy. The family argues over what they are going to do with it. Mama wants to buy a house with it, Walter wants to invest in a liquor store, and Beneatha wants to use the money to go to medical school. The contrast of the characters’ personalitiesRead MoreThe American Dream By Lorraine Hansberry1570 Words   |  7 Pagesabout it their whole lives? Many families struggle to even get close to the American Dream. In Lorraine Hansberry’s â€Å"A Raisin in the Sun†, the Younger family struggled for money, despite having numerous jobs, and a descendant living space. Being African American in the 1950’s made it difficult for the family to move up in class to achieve the American Dream. In â€Å"A Rai sin in the Sun† by Lorraine Hansberry, the Younger’s cannot fully achieve the American Dream due to societal obstacles they experienceRead MoreA Raisin in the Sun by Lorraine Hansberry2035 Words   |  8 PagesLorraine Hansberry’s A Raisin in the Sun is a remarkable play written in 1959 by an African American author about an African American family. This time period was in the early days of the modern awakening of civil rights awareness. It was a timely play challenging the then current stereotypical view of a black family by depicting a realistic portrayal of a specific black family with aspirations, hopes, dreams, dignity, and ambition as would be expected from all families regardless of race. TheRead MoreThe Matriarchs of the House in A Raisin in the Sun by Loraine Hansberry814 Words   |  3 PagesIn A Raisin in the Sun by Loraine Hansberry, the three strong-willed women of the story have varying opinions, views, and beliefs on life. The story is set in the Southside of Chicago, Illinois. The Younger’s are an African-American family that has struggled to survive financially for many years. With a large injection of money from Mr. Younger’s death, the family struggles to make a unanimous decision on what they will use the 10,000 dollars for. The three major female characters differ in a varietyRead MoreA Raisin In The Sun Archetypal Analysis1452 Words   |  6 Pagesarchetypal analysis that enables one to gain insight into the conventional and universal experiences within the society of which that form of literature is based upon. These repeating and shared experiences are especially prevalent in the literature of the 1950s, as it is a period of time characterized by social injustice and prejudice targeting not just individuals but entire groups such as blacks, women and other disenfranchised communities within American society. Accordingly, Lorraine Hansberry’s