Friday, January 24, 2020
Solar System Essay -- essays research papers
The Solar System By â€Å"Delete this text and type your name here.†Introduction As far as we know, there are nine planets locked in orbit around the Sun. Only one, our own Earth, supports life. But there are countless other suns throughout countless galaxies scattered across the expanse of the universe. We still don’t know if life exists on another planet in some other galaxy. Mercury Named for the wing-footed messenger of the Roman gods, Mercury races around its orbit at a dizzying speed of 30 miles (48 kilometers) per second, making the Mercurial year only 88 Earth days long. In contrast, one rotation around its axisâ€â€or a single dayâ€â€takes almost 59 Earth days. Geology Mariner 10 gave us a wealth of information about Mercury when it approached the planet in 1974 and 1975. Because Mercury has no water and barely any atmosphere, no erosion has taken place on its surface. We see Mercury much the way it was soon after it formed. Core We learned that Mercury has an extremely weak magnetic field, which could indicate a hot metallic core, such as molten iron. Geologists think Mercury may be the most iron-rich planet in the solar system. Crust Mercury’s crust seems to be silicate, like that of Earth. Craters The planet’s surface, viewed for the first time via Mariner’s cameras, is covered by craters. The battering occurred during the early period of the solar system when clumps of material were ramming into each other to form the planets. Atmosphere Mercury doesn’t have what we think of as an atmosphereâ€â€that is, a gaseous envelope that produces clouds and weather or protects the surface of the planet from some of the harmful solar radiation. The weak magnetic field on Mercury captures only the barest perceptible trace of charged particles from the Sun. Venus Shrouded in the cloak of mystery, Venus, our nearest planetary neighbor, takes the name of the Roman goddess of love. For some unknown reason, Venus rotates on its axis in retrogradeâ€â€that is, in the reverse direction of its revolution around the Sun. Geology Geologically, Venus appears to have some similarities to Earth. Its crust is probably granitic, overlying a basaltic mantle and a iron-nickel core. The geologic activity that we are familiar with on Earth seems not to exist on Venus, except for the presence two volcanoes along a fault line. ... ...p; 17 Uranus          19.18     84 years     16 hours     14.54     4.10     15 Neptune     god of the deep blue sea     30.06     165 years     18 hours     17.23     3.88     8 Pluto     god of the underworld     39.44     248 years     6.4 days     .002?     0.12-0.30     1 * AU = Astronomical Unit (Earth = 1) Conclusion We know more and more all the time about our own solar system. During the past 15 years, space probes such as the Mariner and Voyager missions have given us tremendous detail about all the planets in this system. Tiny by comparison to the Milky Way, our solar system is awesome, nevertheless, when considered in human scale.
Thursday, January 16, 2020
Nature Versus Nurture and Psychological Changes Essay
Students who have achieved mostly distinctions- Your work is detailed and well written, showing an excellent understanding of the developments through the life stages. You have shown an excellent knowledge of growth and development throughout the human lifespan and the physical and psychological changes of ageing. You show an excellent understanding of the potential effects of life factors and events on the development of the individual. Students who have achieved mostly merits- Your work is detailed, showing a good understanding of the developments through the life stages. You display a good understanding of growth and development throughout the human lifespan and the physical and psychological changes of ageing. You show a good understanding of the potential effects of life factors and events on the development of the individual. Students who have achieved mostly passes- You have understood the key aspects of the developments through the life stages. You have shown a basic understanding of growth and development throughout the human lifespan and the physical and psychological changes of ageing. You show a basic understanding of the potential effects of life factors and events on the development of the individual. Comments if they have achieved P1-P5 (pick and choose depending what they have achieved) You have achieved P1 because you are able to describe physical, intellectual, emotional and social development for each of the life stages of an individual. Well done! You have achieved P2 because you are able to explain the potential effects of five different life factors on the development of an individual. Well done! You have achieved P3 because you are able to explain the influences of two predictable and two unpredictable major life events on the development of an individual. Well done! You have achieved P4 because you are able to explain two theories of ageing. Well done! You have achieved P5 because you are able to explain the physical and psychological changes which may be associated with ageing. Well done! Comments if the students have achieved M1-M3 (pick and choose depending what they have achieved) You have achieved M1 because you are able to discuss the nature-nurture debate in relation to the development of an individual. Well done! You have achieved M2 because you are able to discuss two major theories of ageing in relation to the development of the individual. Well done! You have achieved M3 because you are able to discuss the effects on self- esteem and self- confidence of the physical changes associated with ageing. Well done! Comments if the students have achieved D1-D2 (pick and choose depending what they have achieved) You have achieved D1 because you are able to evaluate how nature and nurture may affect the physical, intellectual, emotional and social development of two stages of the development of an individual. Well done! You have achieved D2 because you are able to evaluate the influence of two major theories of ageing on health and social care provision. Well done! Comments for the ‘The ways in which it can be improved further’ section- Comments if the students still need to achieve P1-P5 due to failure or non-submission (pick and choose depending on what they have not achieved) In order to achieve P1 you need to clearly describe physical, intellectual, emotional and social development for each of the life stages of an individual. In order to achieve P2 you need to explain the potential effects of five different life factors on the development of an individual. In order to achieve P3 you need to explain the influences of two predictable and two unpredictable major life events on the development of an individual. In order to achieve P4 you need to be able to explain two theories of ageing.In order to achieve P5 because you need to be able to explain the physical and psychological changes which may be associated with ageing. Comments if the students still need to achieve M1-M3 due to failure or non-submission (pick and choose depending on what they have not achieved) In order to achieve M1 you need to be able to discuss the nature-nurture debate in relation to the development of an individual. In order to achieve M2 you need to be able to discuss two major theories of ageing in relation to the development of the individual. In order to achieve M3 you need to be able to discuss the effects on self- esteem and self- confidence of the physical changes associated with ageing. Comments if the students still need to achieve D1-D2 (pick and choose depending on what they have not achieved) In order to achieve D1 you need to be able to evaluate how nature and nurture may affect the physical, intellectual, emotional and social development of two stages of the development of an individual. In order to achieve D2 you need to be able to evaluate the influence of two major theories of ageing on health and social care provision. Comments for the ‘How to make this improvement section’- (I have used Alicia’s comments for this section because they relate well) Try to ensure that you have covered each criterion fully before handing it in for marking. You could have written in more detail and given fuller explanations of the points you made. Show that you have carried out independent research into the key concepts. Ensure that all sections of work are included in your folder when it is handed in for marking. You could have aimed for a higher grade / attempted the higher criteria. Check your work carefully before handing it in for marking. You could have attempted all of the Merit / Distinction criteria. Use the resources on Moodle and carry out your own research on the higher criteria. Hand work in more often so that you receive more frequent feedback on how to improve your work. Improve attendance in lessons. Ask for guidance if you do not understand the higher criteria. Improve punctuality and attendance in lessons to ensure that you do not miss important sessions when new work is being covered. Research information independently, in order to gain a greater understanding of key concepts. Add full references within your work and a bibliography at the end of each section.
Wednesday, January 8, 2020
Southwestern University - Traffic Problem - 1595 Words
I. Company Background Southwestern University (SWU) is located in Stephenville, Texas. They have recently hired a new well-known football coach and because of this, they are expecting an increase in their fan base for this sport. Their season ticket sales have gone up, meaning more revenues, however, this also means increase in customer complaints due to traffic problems whenever there’s a game. Dr. Marty Starr, SWU’s president, has asked University Planning Committee to see how they can solve this problem. Based on traffic projections, Dr. Starr would like to have sufficient capacity so that 35,000 cars per hour can be accommodated to travel from the newly-built stadium to the interstate highway. Anticipating this problem, some of†¦show more content†¦(See Appendix A for QM Solution) B. Iterations in New Maximal Flow by Widening Road Capacity Considering the results of the current road infrastructure capacity of 28,000, road-widening efforts should be undertaken by the City Manager. Expanding or widening a certain road translates to an additional 2,000 cars per hour in each road’s capacity count. Several iterations can be applied: a. Apply road widening to all roads: If all 12 roads leading from the Stadium to the Interstate Highway were to be expanded, a maximum of 34,000 cars per hour can be achieved. This can be derived with the increase in capacity in Path 1, Path 2 and Path 3 by 2,000 cars per hour each. (See Appendix B for QM Computations) b. Apply road widening to only critical roads: By picking any path from the start certain roads are widened, adding 2,000 cars per hour into their capacity. These are tested by trial and error, determining how critical they are to the whole traffic flow or not. The group was able to isolate 5 roads that are considered critical in maximizing the number of cars per hour, which results in 34,000 cars per hour. This figure is the same as if we were to expand all of the roads leading from the Stadium to the Interstate Highway. 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