The Most Reliable Bus Transportation System

The Most Reliable Bus Transportation System It is no secret that the Illinois campus is beautiful, but it is also enormous. When I was visiting campus on our tour that was given by an enthusiastic  I-Star, I was exhausted. We did so much walking and I wondered how the I-Star was able to walk backward and speak to us, too. But my main concern was whether I would be able to get to my classes on time and whether I would be able to travel anywhere without on a car. Thankfully, I learned about the Champaign-Urbana Mass Transit District bus system. This bus company not only serves the people of Champaign-Urbana, but it also services the 40,000+ students at Illinois. The best part about all of this was that it was free to use for students (free in the sense that all students pay for bus services as part of their student fees each semester)! All you have to do is show your student ID when you get on the bus. Courtesy of Giphy.com The extremely reliable bus system is something I truly use every day, and they truly care about the students they serve. They serve students from the early morning all the way until 2:00 a.m. I always feel it is a safe option to use to go back to my place of residence on campus. Having a reliable bus system is also great because now it is totally unnecessary to have your own car on campus, so you do not have to worry about maintaining it while at school and consistently getting gas for it. The bus system doesnt just get you to class and directly to the Main Quad, it can get you to explore downtown Champaign! I have visited the famous Art Theater and Carmike 13 to see some amazing movies, and I was so glad I didnt have to pay for an Uber or gas to get there. If youre worried about getting groceries, please remember you have some amazing dining hall options for your residence halls that will always feed you well. However, if you really want some more food and other items, one of the bus routes takes you right to Wal-Mart and the mall! I use that bus route a lot! Just know that Illinois surely takes care of every student and all they can possibly need. I am extremely thankful for the reliable and incredible bus system. Daniel Class of 2018 I’m an Advertising major in the College of Media. I’m from a northwest suburb of Chicago called Buffalo Grove. I chose Illinois because it was the first university in the entire world to offer an Advertising major, which is pretty cool!

The Adventures of Huckleberry Finn Research Paper

Since its first publication in 1884, Mark Twain’s masterpiece The Adventures of Huckleberry Finn has proven to be one of history’s most controversial novels; especially recently, the novel has often been banned by schools and censored by libraries. Characters in the book are constantly using disparaging language toward slaves, and the repeated use of the word â€Å"nigger† makes many sensitive and offended. Critics denounce the novel and Mark Twain as racist for this word being insulting and politically incorrect and for its depiction of black people and how they are treated. However, Twain was not attempting to perpetuate racism; on the contrary, he used satire to expose the ignorance and paradoxical views held by many in America at that time.†¦show more content†¦Huck learns humanity from Jim; without Jim, Huck would be restricted to stealing and lying. Author Charles Nichols maintains that â€Å"the heart of Huckleberry Finn is, of course, the develo ping moral sense of the boy Huck. This growth depends upon his recognition of the humanity of the slave Jim† (212). Twain clearly shows that Jim is extremely moralistic, whose primary function is to further the characterization of Huck by his presence, personality, actions, and words. Additionally, critics object to the novel because it is unfit for children and its language is unsuitable or offensive. Pulitzer Prize-winning American novelist Jane Smiley contends that â€Å"to invest The Adventures of Huckleberry Finn with ‘greatness’ is to underwrite a very simplistic and evasive theory of what racism is and to promulgate it† and that placing in context Huck’s use of the word â€Å"nigger† is inexcusable (64). In the nineteenth century, blacks were consistently referred to as â€Å"niggers†; if Twain had denied that, the novel’s story would have seemed historically inaccurate and essentially meaningless, instead of demonstrating how evil slavery and racism are. If the novel was rewritten to appease the affronted masses, slavery and racism would not even come into play, making Jim’s escape unnecessary, and ultimately reducing the novel from a great piece of American literature to a comical story. Barbara Jackson, professor of education at Fordham University, states, â€Å"the word was so commonly used thatShow MoreRelatedThe Adventures Of Huckleberry Finn By Mark Twain1164 Words   |  5 PagesLiterature March 2, 2016 Research Paper In The Adventures of Huckleberry Finn, Mark Twain writes about the events in Huckleberry Finn’s life and the people around him. Huckleberry Finn tells the tale of life in the nineteenth century through the eyes of a 14-year-old boy struggling to find his place in this society. Throughout the story Huck deals with several moral issues; such as slavery, his distrust of society, and social order. In this essay I will discuss moral issues that Huck Finn faces in the storyRead MoreResearch Paper Mark Twain1306 Words   |  6 PagesIsabella Thomaz Donna Hunter - Period 2 Research Paper - Mark Twain October 26, 2012 MARK TWAIN: A REMARKABLE MAN WHO PAINTED THE WORLD â€Å"Classic - a book which people praise and dont read.† When Samuel L. Clemens (more often referred to as Mark Twain) said this, he meant it in a humorous sense, but he also wanted people to understand it’s meaning. People call books like Huck Finn and Gatsby classics, yet the idea that these books are actually read by everyone isn’t so. Twain isn’t justRead MoreMark Twain3000 Words   |  12 Pagesï » ¿ Mark Twain’s Impact on American Literature. Multi-Genre Research Paper Table of Contents: Prologue†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.†¦Ã¢â‚¬ ¦.†¦.†¦.3 Expository Research†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.†¦.4-6 Multi-Genre Project†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦7-12 Epilogue†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..13 Works Cited †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦14 Prologue. When I was thinking about the topic for my research paper I could not come up with any ideas. Then I looked through my entire English binder andRead MoreThe Adventures Of Huckleberry Finn By Mark Twain1154 Words   |  5 PagesDecember, 2014 Transcendentalism in Huck Finn Many Readers gain much knowledge from the works Of Mark Twain. Huck Finn is one of the works of the last two hundred years. The author, Mark Twain was a famous Transcendentalist that gained popularity in the 19th century. In research of his works, Mark Twain’s novels involved many transcendentalist ideas. Huck Finn is one of key factors in the ideals of transcendentalist. The novel, The Adventure of Huckleberry Finn is Mark Twains works to spread the ideaRead MoreThe Adventures Of Huckleberry Finn By Mark Twain2388 Words   |  10 PagesStay in School, Huck Finn! Intro Adventures of Huckleberry Finn is Mark Twain’s most popular and perhaps most controversial book. It is celebrated by many to be the quintessential classic american novel, depicting boyhood adventure along the mighty Mississippi River in the mid seventeenth century. But, simultaneously, many also feel that the book is unsuitable for the classroom. Its controversy lies in the notion by some that it is racist and promotes racism, while humiliating black students. MuchRead MoreThe Adventures Of Huckleberry Finn By Mark Twain2239 Words   |  9 PagesTim Moran Mr. McMullen 531-06 3 March 2015 Term Paper Final Draft All American literature comes from one book by Mark Twain called Huckleberry Finn. American writing comes from that. There was nothing before. There has been nothing as good since. These famous words by Ernest Hemingway, a world renowned author, go to prove that Huckleberry Finn truly is a literary masterpiece. Even though Huckleberry Finn is classified as one of the best novels ever created does not mean that it is filled withRead MoreTwains Adventures Of Huckleberry Finn Essay2827 Words   |  12 PagesResearch Paper on Twains Adventures Of Huckleberry Finn      Ã‚   Mark Twains Adventures of Huckleberry Finn is a novel about a young boys coming of age in the Missouri of the mid-1800’s.   It is the story of Hucks struggle to win freedom for himself and Jim, a Negro slave.   Adventures of Huckleberry Finn was Mark Twain’s greatest book, and a delighted world named it his masterpiece.   To nations knowing it well - Huck riding his raft in every language men could print - it was AmericasRead MoreCensorship Of Classic Books1325 Words   |  6 PagesTitle: Research Paper Censorship of Classic Novels in Canada and the United States Ashley Sprague 7607211 College Reading and Writing Skills/ COMM1085 Dawn Grimmer Many novelists in today’s society have the growing responsibility of censoring their work, ultimately loosing their freedom of expression. Canada is no different from other countries who have begun the long list of â€Å"banned and challenged classic novels.† Most of the Canadian population can remember studying Harper Lee’s ToRead MoreThe Adentures of Huckleberry Finn1524 Words   |  7 Pages Wisdom is to maturity as writing a paper is to taking an English course. And wisdom can only be gained through life experience, good, bad, or in between. Huck’s maturity is developed through his adventure down the Mississippi River, where he must make â€Å"adult† choices that will affect not only him but his dependent friend, Jim, showing that all kids need is to be given responsibility in order to become responsible. In the beginning of the novel, Huck’s life is completely controlledRead More Mark Twain Essay2338 Words   |  10 Pagescomfortable reading the language they used in public. William Gibson belies that, â€Å"Twain developed one of the great styles in the English language because he had a firm grasp of the American vernacular†(qtd. in Long 205).   Ã‚  Ã‚  Ã‚  Ã‚  His letters to the Keokuk Papers in St. Louis proved to be most successful for Clemens. He signed these letters with the pseudonym Thomas Jefferson Snodgrass. His narrations made the western readers feel more intelligent by laughing at the character’s idiocy. â€Å"Snodgrass† would continue

Nutrient Absorption in the Digestive System

Digested molecules of food, as well as water and minerals from the diet, are absorbed from the cavity of the upper small intestine. The absorbed materials cross the mucosa into the blood, mainly, and are carried off in the bloodstream to other parts of the body for storage or further chemical change. This part of the digestive system process varies with different types of nutrients. Nutrient Absorption in the Digestive System Carbohydrates An average American adult eats about half a pound of carbohydrate each day. Some of our most common foods contain mostly carbohydrates. Examples are bread, potatoes, pastries, candy, rice, spaghetti, fruits, and vegetables. Many of these foods contain both starch, which can be digested and fiber, which the body cannot digest. The digestible carbohydrates are broken into simpler molecules by enzymes in the saliva, in juice produced by the pancreas, and in the lining of the small intestine. Starch is digested in two steps: First, an enzyme in the saliva and pancreatic juice breaks the starch into molecules called maltose; then an enzyme in the lining of the small intestine (maltase) splits the maltose into glucose molecules that can be absorbed into the blood. Glucose is carried through the bloodstream to the liver, where it is stored or used to provide energy for the work of the body. Table sugar is another carbohydrate that must be digested to be useful. An enzyme in the lining of the small intestine digests table sugar into glucose and fructose, each of which can be absorbed from the intestinal cavity into the blood. Milk contains yet another type of sugar, lactose, which is changed into absorbable molecules by an enzyme called lactase, also found in the intestinal lining. Protein Foods such as meat, eggs, and beans consist of giant molecules of protein that must be digested by enzymes before they can be used to build and repair body tissues. An enzyme in the juice of the stomach starts the digestion of swallowed protein. Further digestion of the protein is completed in the small intestine. Here, several enzymes from the pancreatic juice and the lining of the intestine carry out the breakdown of huge protein molecules into small molecules called amino acid. These small molecules can be absorbed from the hollow of the small intestine into the blood and then be carried to all parts of the body to build the walls and other parts of cells. Fats Fat molecules are a rich source of energy for the body. The first step in digestion of a fat such as butter is to dissolve it into the water content of the intestinal cavity. The bile acids produced by the liver act as natural detergents to dissolve fat in water and allow the enzymes to break the large fat molecules into smaller molecules, some of which are fatty acids and cholesterol. The bile acids combine with the fatty acids and cholesterol and help these molecules to move into the cells of the mucosa. In these cells, the small molecules are formed back into large molecules, most of which pass into vessels (called lymphatics) near the intestine. These small vessels carry the reformed fat to the veins of the chest, and the blood carries the fat to storage depots in different parts of the body. Vitamins The large, hollow organs of the digestive system contain muscle that enables their walls to move. The movement of organ walls can propel food and liquid and also can mix the contents within each organ. Typical movement of the esophagus, stomach, and intestine is called peristalsis. The action of peristalsis looks like an ocean wave moving through the muscle. The muscle of the organ produces a narrowing and then propels the narrowed portion slowly down the length of the organ. These waves of narrowing push the food and fluid in front of them through each hollow organ. Water and Salt Most of the material absorbed from the cavity of the small intestine is water in which salt is dissolved. The salt and water come from the food and liquid we swallow and the juices secreted by the many digestive glands. In a healthy adult, more than a gallon of water containing over an ounce of salt is absorbed from the intestine every 24 hours. Digestion Control A fascinating feature of the  digestive system  is that it contains its own regulators. Hormone Regulators The major hormones that control the functions of the digestive system are produced and released by cells in the mucosa of the stomach and small intestine. These hormones are released into the  blood  of the digestive tract, travel back to the  heart  and through the  arteries, and return to the digestive system, where they stimulate digestive juices and cause organ movement. The hormones that control digestion are gastrin, secretin, and cholecystokinin (CCK): Gastrin causes the stomach to produce an acid for dissolving and  digesting some foods. It is also necessary for the normal growth of the lining of the stomach, small intestine, and colon.Secretin causes the  pancreas  to send out a  digestive juice  that is rich in bicarbonate. It stimulates the stomach to produce pepsin, an enzyme that digests protein, and it also stimulates the liver to produce bile.CCK causes the pancreas to grow and to produce the enzymes of pancreatic juice, and it causes the gallbladder to empty. Nerve Regulators Two types of  nerves  help to control the action of the digestive system. Extrinsic (outside) nerves come to the digestive organs from the unconscious part of the  brain  or from the  spinal cord. They release a chemical called acetylcholine and another called adrenaline. Acetylcholine causes the muscle of the digestive organs to squeeze with more force and increase the push of food and juice through the digestive tract. Acetylcholine also causes the stomach and pancreas to produce more digestive juice. Adrenaline relaxes the muscle of the stomach and intestine and decreases the flow of blood to these  organs. Even more important, though, are the intrinsic (inside) nerves, which make up a very dense network embedded in the walls of the esophagus, stomach, small intestine, and colon. The intrinsic nerves are triggered to act when the walls of the hollow organs are stretched by food. They release many different substances that speed up or delay the movement of food and the production of juices by the digestive organs. Sources Your Digestive System and How It Works. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Updated Sept. 2013. Web. https://www.niddk.nih.gov/health-information/health-topics/Anatomy/your-digestive-system/Pages/anatomy.aspx.

Adventures of Huckleberry Finn by Mark Twain Free Essays

The Adventures of Huckleberry Finn by Mark Twain, Husk’s relationship with Jim becomes Increasingly close and respected as these chapters unwind. In the beginning of the book, both Houck and Jim are only briefly acquitted due to Jim working for Miss Watson as a slave, who happens to be Husks legal guardian at the time. Even though both characters live under the same roof, neither of them pay much attention to one another due to the fact that slaves in the asses, degraded by the term â€Å"naggers†, would not be accepted into the white community as anything ore. We will write a custom essay sample on Adventures of Huckleberry Finn by Mark Twain or any similar topic only for you Order Now However, despite Houck barely knowing him, he had noticed â€Å"Miss Watson big Niger, named Jim†(pig. 6) was physically large, very superstitious but capable of interpreting signs that could provide useful Information. We know this since Houck mentions that â€Å"Jim, had a hair-ball as big as your fist, which had been took out of the fourth stomach of an ox, and he used to do magic with It. He said there was a split Inside of It, and It endowed everything. So I went to him that night and told him pap was here again, for I found his tracks In the snow. What I wanted to know, was, what e was going to do, and was he going to stay? â€Å". Once Husks Journey starts by sailing down the Mississippi River he eventually comes across an island where he meets Jim once again. As both characters have a common ground as to why they had ran away from their previous destinations, they decided to stick together and camp out for a couple of days. During this time, Houck pulled a childish prank on Jim which resulted in Jims leg swelling from a very poisonous snake bite. Even though Houck had caused Jim great pain, he decided to ignore it and â€Å"Judged he was all 55); however, he â€Å"slid out quiet and thrower the snakes Lear away amongst the bushes; for I warrant going to let Jim find out It was all my fault, not If I could help which shows that he had little remorse for his actions and had no means to apologize. Later in Chapter. 15, Houck and Jim are separated by fog while going down the river. Eventually Houck finds the boat and is reunited with a rather drowsy Jim. Once Jim awakens he immediately shows his sincerest happiness to Husk’s survival. Unfortunately, for Jim, Husk’s childish behavior brings him to say â€Å"Gone away? Why, what in the nation do you mean? I haunt been gone anywhere. Where would I go to? â€Å"(pig. 87). However, Jim knows it was no dream of his and figures out that Houck had been lying and teasing him the entire time. We know that Jim is extremely offended by Husk’s behavior as he says â₠¬Å"When I got all wore out wide work, en wide De call’ door you, en went to sleep, my heart wiz broke bakes you wiz ISO’, en I din’ Kerrey no what become err me en De raff. En when I wake up en fine you back gal.’, all safe en soon’, De tears come en I could a got down on my knees en kiss’ F foot Xi’s so lie. Data truck dad is trash; en trash is what people is date data puts dirt on De head err dye Freon’s en makes ‘me ashamed. â€Å"(pig. 9) meaning that he couldn’t have been more worried when he had lost Houck and couldn’t have been any happier when they were united, but could not understand why he would ever treat him in that way. Houck responds by saying â€Å"It made me feel so means I could almost kissed his foot to get him to take it back. â€Å"(pig. 89) and this is the first time he actually feels guilt for his actions towards Jim, so guilty in fact, that Houck brings himself to apologize. This is a revolutionary moment in the book as both a white man and a slave are on moral ground of respect and resembles how close these two characters have become throughout these chapters. How to cite Adventures of Huckleberry Finn by Mark Twain, Papers

Princeton Acceptance Essay Example For Students

Princeton Acceptance Essay A creek is no place for shoes. I think its unreasonable to ask such children to keep their shoes on in such a place. My bare feet were always covered with calluses from walking down the rough pavement of Pine Street and around the corner, past the tall oaks, but not as far as the Lindsays squeaky old swing-set. It was hard to see from the road, and as far as I could tell, nobody ever went there, except for me. Large pines nearby stood tall and erect, looking down at the ripples and currents that nudged each other about playfully, like children in the back seat of a car on a long drive. Stones and pebbles lined the shallow bottom and allowed the water to glide in creative patterns over their smooth surfaces. Larger, moss covered rocks dotted the back and provided ideal spots for a child to sit around watch and wonder. The creek taught me things; it was my mentor. Once I discovered tadpoles in several of the many eddies and stagnant pools that lined the small rivulet. A cupped hand and a cleaned-out mayonnaise jar aided me in clumsily scooped up some of the more slothful individuals. With muddy hands and knees, I set them on the kitchen table and watched them on a daily basis as they developed into tiny frogs. I was fascinated by what was taking place before my eyes, but new questions constantly puzzled me. Dad was usually responsible for assuaging these curiosities. He told me about different kinds of metamorphosis and how other creatures lived in the water that I couldnt see without a fancy magnifying glass. By the creek, my mind was free to wonder. I remember sitting on a mossy rock and watching birds; I used to pretend I was one. As my body lay still, my imagination would take flight. High above, looking down on this stream from the pale blue heavens, the wind whistled over my face and the sun warmed my body. When my eyes flickered open, it was usually time to go home. Sometimes I even did. I was always up for a challenge. My neighbor and I used to jump from rock to rock in a kind of improvised hopscotch obstacle course that tested our balance and agility against one another. He was four years older and I had to practice every morning when he was at school. On the rare occasions that I outdid him, I wore a goofy smirk for the rest of the day. The creek was a frontier. The stream extended far into the depths of the woods. I thought that if I wondered too far into its darkness, I might be consumed by it and never heard from again. Gradually overcoming my fears, I embarked on expeditions and drafted extensive maps using my fathers old compass, a sheet of paper, and a few colored pencils. As my body grew in height and weight, my boundaries grew in extent and breadth. Years later, I happened to be walking to a friends house by way of the creek. It occurred to me that what was once an expedition was now merely a shortcut. Although I had left this stream behind, I found others: New questions and freedoms, new challenges and places to explore. But this creek would remain foremost in my memory, whatever stream, river, or ocean I might wade. Acceptance Essays

10 Tips to study at exam time Essays

10 Tips to study at exam time Essays 10 Tips to study at exam time Essay 10 Tips to study at exam time Essay Examination periods bring head to students, but to all, there are some techniques that make them more bearable. Here we show you some tips that we hope you find them useful. Cheer up! Write by hand on paper: Write down what you’re trying to study for remember more easily. Research on the subject says that the act of writing produces the feedback of the brain, resulting in a motor memory which makes it easier to remember the long-term information. Typing or voice recording have the same result, so, even if it takes longer it is the best you can do. Move! Believe it or not, the place where you study can also produce different effects in studies. If you’ve been studying in your room, move to the kitchen table or scroll to the library. It can help you keep a clear mind, plus improved. Try meditation: It is scientifically proven that meditation improves test results: a recent study by the University of California, Santa Barbara specifically states that many college students improved their capacity to face the exams through meditation, while another study showed students who meditated before a conference got better on the test that was conducted after the conference that students who had not meditated. During the weeks before the exam, you have to try to sit quietly and focus, making breathing paused for 5 minutes a day, morning and evening, to improve concentration and clear the mind. Take a break: Study more it does not necessarily mean better study: Studies have shown that taking a break every 10 minutes to walk can help improve your concentration up to two hours later. Test yourself: Be tested one / a / herself can be an effective way to alleviate nerves exist before an exam and review those skills that we have forgotten. Research shows us that active study methods are more effective than other strategies (such summarize or underline). Drink plenty of water: This is very important: if you took too much coffee or energy drinks, something that is often used during exam periods, and have a dehydrating effect on our body, we should always have a water bottle handy when you are studying. Dehydration (even mild) can impair cognitive function and mental performance. Do not overcrowd: study everything the day before, it can seem a sure way to gain the knowledge, that you is entirely clear, but it is actually counterproductive, not only will you be exhausted when you get to review but will be tired and do not Wing will remember everything perfectly possible, like you’re rested. There is no quick solution to pass the exams, so our recommendation is to start to prepare a month before exams, at your own pace and time to rest the night before the test. Make a study group: Group study may be useful whenever you choose the right people and you focus on the notes. Try to limit the group to a maximum of 3 or 4 members and making a list of things you are going to study each time you are left. Divide and conquer: Not all tests that do have the same difficulty, thus there is no need to always study the same way, or given equal time to all tests: you must evaluate the test yourself depending on the difficulty and knowledge you have, let them take a longer sections or other†¦ Listen to music to relax: Listening to classical music can help the mind to stay focused. Research has shown that workers who listen to music do their jobs more efficiently than those who do not way, so why not do the same with our studies?

Chapter 2 Motion in one dimension Essays - Classical Mechanics

Chapter 2 Motion in one dimension Essays - Classical Mechanics Chapter 2 Motion in one dimension Chapter 2 Motion in one dimension 1 / 4 Chapter 2: Motion in one dimension The study of motion and of physical concepts such as force and mass is called dynamics. The part of dynamics that describes motion without regard to its causes is called kinematics. The purpose of this chapter is to describe motion using the concepts of displacement, velocity, and acceleration. For the sake of simplicity, we begin with the study of 1-dimensional motion. 1) Displacement Motion involves the displacement of an object from one place in space and time to another. Describing the motion requires some convenient coordinate system and a specified origin. A frame of reference is a choice of coordinate axes that defines the starting point for measuring any quantity. Ex: Consider a body moving in 1-dimension; a train traveling down a straight railroad track: The x-coordinate of the train at any time describes its position in space. The displacement of an object is defined as its change in position, and is given by: SI unit: meter (m) where the initial position of the object is labeled and the final position is . Note: The displacement of an object is not the same as the distance it travels: when you toss a ball 1 m up and you catch it; the displacement is zero but the distance covered by the ball is 2 m. Chapter 2 Motion in one dimension 2 / 4 2) Velocity 2.1) Speed vs velocity In day-to-day usage, the terms speed and velocity are interchangeable. In physics, however, theres a clear distinction between them: Speed is a scalar quantity, having only magnitude, while velocity is a vector, having both magnitude and direction. 2.2) Average speed The average speed of an object over a given time interval is defined as the total distance traveled divided by the total time elapsed: Average speed is always positive. 2.3) Average velocity a) Definition The average velocity during a time interval t is the displacement divided by t : The average velocity of an object in one dimension can be either positive or negative, depending on the sign of the displacement. Example 1: If you run from x = 0 m to x = 25 m and back to your starting point in a time interval of 5 s. Compare your average speed with your average velocity. 2.4) Instantaneous velocity Average velocity doesnt take into account the details of what happens during an interval of time. To do so, we use the concept of instantaneous velocity. The instantaneous velocity is the limit of the average velocity as the time interval becomes infinitesimally small: SI unit: (m/s) 1 m/s = 3.6 km/h. SI unit: (m/s) SI unit: (m/s) Chapter 2 Motion in one dimension 3 / 4 3) Acceleration The changing of an objects velocity with time is called acceleration. The instantaneous acceleration is given by: 4) One dimensional Motion with constant velocity For a 1-D motion with constant velocity, the kinematic equation of motion is given by: 5) One dimensional Motion with constant acceleration For a 1-D motion with constant acceleration, the Kinematics equations are: We can also use: Example 2: A race car starting from rest accelerates at a constant rate of 5 m/s. 1) What is the velocity of the car after it has traveled 30.5 m? 2) How much time has elapsed? 3) Calculate the average velocity two different ways. Example 3: A typical jetliner lands at a speed of 71.5 m/s and decelerates at the rate of 4.47 m/s. If the plane travels at a constant speed of 71.5 m/s for 1.00 s after landing before applying the brakes, what is the total displacement of the aircraft between touchdown on the runway and coming to rest? 6) Freely falling objects A freely falling object is any object moving freely under the influence of gravity alone, regardless of its initial motion. Ex: Objects thrown upward, downward or released from rest. If we neglect air resistance and assume that the free-fall acceleration doesnt vary with altitude over short vertical distances, then the motion of a freely falling object is the same as motion in one dimension under constant acceleration. If we choose the up-direction as the +y-direction: SI unit: (m/s2 ) for constant a Chapter 2 Motion in one dimension 4 / 4 The kinematics equations of motion with the y-variable are: Example 4: A stone is thrown from the top of a building with an initial velocity of straight upward, at an initial height of above the ground. The stone just misses the edge of the roof on its way down, as shown in the figure. Neglect air drag. Determine: 1) the