mechanics. They describe the relationship between the forces acting on a body and its motion due to those forces. They have been expressed in several different ways over nearly three centuries‚ and can be summarized as follows: 1- The first law states that an object continues in its state of rest or uniform motion in a straight line unless compelled by an external unbalanced force. Since law defines inertia‚ it is also known as the law of inertia. 2- The second law states that the rate of
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2.5.1 Cell Structure Vocabulary: cell wall‚ centriole‚ chloroplast‚ cytoplasm‚ endoplasmic reticulum‚ Golgi apparatus‚ lysosome‚ mitochondria‚ nuclear envelope‚ nucleolus‚ nucleus‚ organelle‚ plasma membrane‚ plastid‚ ribosome‚ vacuole‚ vesicle Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What are some of the structures inside a cell that help it to live and perform its role in an organism? ______Mitochondria‚ nucleus‚ ribosome’s. __________________________________________________________
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Emma Rosen Professor Lucas Rhetoric and Composition November 24‚ 2012 Love is Equal Federal and state governments have an obligation to protect the rights of individuals. The general population may feel that they are doing their job‚ but in the issue of same-sex (gay) marriage this is not the case. As recently as the 1970s‚ homosexual marriage was considered a crime in most states in America and such laws were ruled unconstitutional in only 2003. America is the land of the free‚ where citizens
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PROPERTIES OF SOLUTIONS A solution is a mixture of materials‚ one of which is usually a fluid. A fluid is a material that flows‚ such as a liquid or a gas. The fluid of a solution is usually the solvent. The material other than the solvent is the solute. We say that we dissolve the solute into the solvent. Some solutions are so common to us that we give them a unique name. A solution of water and sugar is called syrup. A solution of sodium chloride (common table salt) in water is called brine
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Systems I Mid-term Exam Date: March 2‚ 2013 Time: 1h30 (10:00-11:30) Professors: A. Karmouch and Hasan Ural Instructions: Answer ALL questions. This is a close-book examination. Use the provided space to answer the following questions. If more space is needed‚ use the back of the page. Show all your calculations to obtain full marks. Calculators are NOT allowed. Read all the questions carefully before you start. Question Points Percentage 1 40% 2 60% Total 100% Question 1 (40 points:
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Chapter 2 IB Biology 2.1 Cell Theory 2.1.1 Outline the cell theory (2). • All organisms are composed of one or more cells • Cells are the smallest units of life • All cells come from preexisting cells • TOK: cell theory replaces the former ideas of spontaneous generation or abiogenesis in which inanimate matter assembles itself into living forms • Exception: muscle cells- more than 1 nucleus‚ very long; (fungal cells) hyphae roots- not a single unit; protoctista- not specialized to single
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Zhu St Pauls Grammar School 00296648 Biology HL Trial 1 & 2: 8/4/13 Trial 3 & 4: 10/4/13 Photo credits: Smarties by Andrew Dean‚ copyright Rebecca Douglas‚ retrieved 9/4/13 http://rebeccadouglas.photoshelter.com/image/I0000WDNZi_s2W4A Smarties Diffusion Experiment RESEARCH QUESTION How does changing the colour of smarties affect the extent of its passive diffusion? INTRODUCTION Passive diffusion‚ also known as simple diffusion‚ is used to describe the exergonic reaction of a substance where
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PEER PRESSURE Friends are many; some make us better and some worse. Peer pressure persuades one to do something that one does not want to do. But maybe you want to do it‚ and you just don’t have the courage to do it and your friends talk you into it. Peer Pressure can be good peer pressure or bad peer pressure. Bad peer pressure makes one do something that one does not want to do. One of the major problems with peer pressure is that one is forced into doing something one does not want to
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percentage of people who are affected by social pressure. Therefore‚ they come up against significant problems. These problems effects people’s lives negatively and people are affected by each other easily. This is like a loop and each person is affected by another person. Thus‚ some problems come forward such as; identity loss and lack of self-confidence. First of all‚ people lose their identity after they born due to social pressure. Because‚ communities have certain morals and cultures
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connective tissue. 2.the pressure sites of the body are Heels / Hips / Inner knees / Lower back / Buttocks / elbows / Shoulders and the Back of the head and ears . 3.the risk factors that might put a service user at risk of skin breakdown and pressure sours are Limited mobility / Impaired sensation / Old age / Excess sweating or incontinence / Dehydration and Smoking . 4.incorrect handling and moving techniques can cause skin tears the skin is ripped open pressure damage where they can
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