...Roller coasters have come a long way from ¨monumental ice slides¨ in the 16th and 17th century to an actual steel cart with wheels today.As we go on we will discuss the history of roller coasters,the physics behind them,and the authors experience in the making of its own roller coaster. The history of a roller coaster goes back a long time to the 16th and 17th century.The first roller coaster started as a ice slides which eventually developed in to rolling carts.Then as time went two of the first roller coasters were created,one being in the Russian MT of Belleville created as ¨a train attached to a track¨ and second the first American made roller coaster which was originally made to send coal but was then remade into a more scenic tour.It was called ¨Mauch Chunk Switchway railway.¨As time went soon the roller coasters were made into wood an so on developed. Roller coaster use two main things in order to finish the ride,known as inertia and gravity.As the roller coaster goes up the track and eventually gets to the peak of the roller coaster gravity soon pulls it down the track it causes the roller coaster to change its energy.The roller coaster soon goes from having potential energy to kinetic.But since...
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...Various Locations of a Roller Coaster Respectfully Submitted to the Science Department Of Blanche Ely High School Gavin Frater Dr. Pedro Torres Anatomy and Physiology Period:1 Abstract Table of Contents 4.………………………………………………………………………………… Introduction 8………………………………………………………………………………….. Hypothesis 8………………………………………………………………………………….. Materials 8…………………………………………………………………………………... Procedures 10…………………………………………………………………………………. Results 11………………………………………………………………………..Discussion/ conclusion 12………………………………………………………………………………… Bibliography 13………………………………………………………………………………… A. Appendix Slowly, and sometimes, ever so slowly, a train of cars are being pulled up to the highest point of the roller coaster. Of course, one by one, the cars are pulled downhill until gravity takes over and push it all across the tracks. The way the roller coaster goes around is one of the best examples of how the conversion of gravitational potential energy to kinetic energy from the highest points. As the cars go up the track, it is acquiring the potential energy until the cars are at the highest point of the track. At this point, the cars have reached its maximum gravitational potential energy. Next as the cars go down the track, the potential energy is then changed to kinetic energy. Eventually the cars go up another hill and some of the kinetic energy is changed again to potential energy. This is the loop of energy conversions that go around dealing with roller coasters. Energy is the ability...
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...Rollercoasters are driven by different forces of gravity, inertia and centripetal. The physics used in a rollercoaster also involves friction, work, air resistance, and energy. It usually begins with a mechanical device i.e. motor and chain; they exert a force on the roller coaster car train to lift them to the top of the hill. From this point, gravity starts operating, and the duration of the ride undergo energy transformation. Pulling the rollercoasters uphill uses energy, this energy does not simply disappear. It is stored this energy just by being up in the air and the higher they have pulled the more energy they store. The stored energy will be used to race back down the hill when the ride begins. This is because they have the potential to use future energy that was stored in the past. The stored energy is called Potential energy. Once the cars are released and start rolling down the hill, the force of gravity makes them hurtle downwards when they round the brow of the first hill. As accelerate and pick up momentum, their potential energy turns into kinetic energy. The further they go downhill, the faster they go and more potential energy is converted into kinetic energy. When the ride starts, the cars have a certain amount of potential energy. They can never have more than this no matter how long the ride will last. Through the whole ride, potential and kinetic energy keep swapping back and forth that’s why rollercoaster cars always go slower in higher bits of the ride...
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...Topic 5 Objectives 1) Ancient people were aware of numerous different kinds of matter. The two major forms of matter that they dealt with were “metals” and “earths.” a. Metals: Gold, Silver, Copper, Iron, Mercury, Lead and Tin i. Used for weapons, etc b. Earths: Clay, mud, Sand, Silt, Loam, Ash i. Used for pottery, melted sand to make glass, used stone to make appliances ii. Woods used as well as fibers (clothing) 2) Development of Elements: a. Matter is one basic substance i. Thales – water basic element, found as gas, solid and liquid ii. Animaxander – all matter is from one “boundless thing”, determined by the qualities hot/cold, dry/wet iii. Anaximenes – Air is the one basic substance iv. Empedocles – Earth, water, fire, air b. Wood reveals composition of matter when it burns – matter is a combination of two or more elements – fire issues from it, water hisses from it, air (smoke) is produced from it, earth (ashes) remain behind c. Four elements, four qualities – air, fire, water, earth – cold/hot, dry/wet d. Elements can change state to another element – they are interchangeable ( i.e., water becomes air when it evaporates 3) Alchemists vs Chemists a. Similarities: concerned with composition, form and properties of materials; studies combine theoretical outlook with experimental curiosity; looking...
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...Praise for Jesus Is _____. “Judah Smith is a unique gift to my generation. In Jesus Is _____ , he will motivate you to let go of your preconceived, limited view of Jesus so you can embrace who He really is in our lives—more real and relevant than we have ever imagined.” —S te v en F u rtick , le a d pa Stor , e le vation c h u rch a n d author oF th e Ne w Yor k T im es beStSeller G r e aTer “Perhaps the most daunting and humbling task we have as Christians is to finish the sentence ‘Jesus is . . . .’ As many of us saved by His grace are aware, He is King. He is Lord. He is salvation. But to many in our world, He is most prominently . . . misunderstood. There is not another human being on earth whom I know personally, who could tackle a book subject like this as well as Judah Smith. To Judah, Jesus is everything. And from that platform he writes this book. I eagerly await its impact in my city, New York City, and beyond . . . it’s overdue.” —c a r l l entz , le a d pa Stor , h illSong c h u rch , n e w Yor k c it Y “Every once in a while a book is written that does not only contain a powerful message but the author is a living embodiment of the message thus making the book all the more life changing! The book you are holding in your hands is one of those. As you read through this book you will discover that Jesus is not at all like you thought and so much more than you imagined.” —c h r iStin e c a in e , Fou n der oF th e a21 c a mpa ign 00-01_Jesus Is.indd...
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...Part 1 最 常 考 问 题 及 参 考 答 案 注意很多问题后要加理由,不然考官就会问你“WHY” 第一部分很多是问个人信息的问题,答案因人而异,这里提供的答案可以做为范本,不符 合你的情况的可以做些修改。符合你的情况的,你可以练熟!还有一些问题,就是我们提 供的问题的变化,就是不同的问法,但是你可以用同一个方式来回答的,要记得考试时候 能听明白,然后会转化哦! 1. Your Work or Your Studies • Do you work or are you a student? Well, I am a senior in Zhejiang University and I’m planning to pursue my master’s degree in the U.K after my graduation. That’s why I take this test. 1a) Your Work General Description of Your Job • What job (or, what work) do you do? I’m a teacher at an English training center. I’ve been working there for several years. It’s my pleasure to see my students make progress, so I think this job is very suitable for me. • What is the nature of that work? It’s a teaching job. I help the students improve their English language skills and most of them are planning to take IELTS. • What do you do in that job? I teach English, both productive and receptive skills. My job is to help my students succeed in their studies and pass exams if they need to. • Would you say your job (or, your work) is very important? 、 I think so. I think the world will be much worse if there’re no teachers, especially good...
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...cover cover next page > Cover Business, Management and Finance Small Business; Entrepreneurship title author publisher isbn10 | asin print isbn13 ebook isbn13 language subject publication date lcc ddc subject : : : : : : : Entrepreneurship and Small Business Burns, Paul. 0333914732 9780333914731 9781403917102 : : : : cover next page > file:///Z|/_==%CF%CE%C8%D1%CA==/Entrepreneurship%.../0333914732__gigle.ws/0333914732/files/cover.html [06.10.2009 1:01:58] page_i < previous page page_i next page > page_i next page > Page i Entrepreneurship and Small Business < previous page file:///Z|/_==%CF%CE%C8%D1%CA==/Entrepreneurship%...0333914732__gigle.ws/0333914732/files/page_i.html [06.10.2009 1:02:00] page_ii < previous page page_ii next page > page_ii next page > Page ii < previous page file:///Z|/_==%CF%CE%C8%D1%CA==/Entrepreneurship%2...0333914732__gigle.ws/0333914732/files/page_ii.html [06.10.2009 1:02:00] page_iii < previous page page_iii next page > page_iii next page > Page iii Entrepreneurship and Small Business Paul Burns < previous page file:///Z|/_==%CF%CE%C8%D1%CA==/Entrepreneurship%2...333914732__gigle.ws/0333914732/files/page_iii.html [06.10.2009 1:02:00] page_iv < previous page page_iv next page > Page iv © Paul Burns 2001 All rights reserved. No reproduction, copy or transmission of this publication may be...
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