Transport Processes (SKKK 2313) ASSIGNMENT # 1 1. Consider a steam pipe of length L=20 m‚ inner radius r1=6 cm‚ outside radius r2=8 cm‚ and thermal conductivity k=20 W/m.k. The inner and outer surfaces of the pipe are maintained at average temperatures of T1=150oC and T2=60oC‚ respectively. Obtain a general relation for the temperature distribution inside the pipe under steady conditions‚ and determine the rate of heat loss from the steam through the pipe. Assume that heat transfer is one-dimensional
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Families and communities will benefit greatly‚ if the minimum wage is raised the country will also. Although there are many who agree that raising wages and creating jobs will reduce poverty‚ there are others who say it will make it worse. Heritage Foundation expert James Shrek claims that raising the wages will not reduce poverty‚ but increase it even more. Shrek tells the reader that‚ “No business pays its employees more than they produce. A higher minimum wage would cause businesses to lay off
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Cell Membrane Transport The purposes for these experiments is to be able to understand osmosis and its relationship to tonicity of solutions‚ and the transportation of molecules across cell membranes. It’s also used to understand‚ and how temperature affects diffusion. You also learn how to test for presences of starches and sugars in solutions. In the first exercise I will be testing for diffusion through an artificial membranes. This one has forty five steps to it. I will not go into
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Road Safety Why think of road safety at all? It is because of the accidents that occur everyday on the road‚ in which all sorts of vehicles and human beings and even animal are involved. These accidents mean loss of life and loss of property and more often than not obstruction to traffic. In this age of speed and fast moving vehicles and with the congestion on roads‚ these accidents have became almost an everyday affair. So unless everybody is educated on the importance of road safety‚ the loss
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cell transport mechanisms. These types of transports are passive and active transport. The difference between active and passive is that passive does not require energy and active does require energy. The reason passive does not require energy is because it travels down a concentration gradient. On a concentration gradient molecules naturally move from high to low concentration. In active transport‚ molecules move from low to high concentration. There are three different types of transports for passive
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* HOW TO REDUCE EXAMINATION STRESS? When studying for exams students are normally under a lot of pressure and commonly confonted with exam stress. Exam period is extremly stressful for many students and some of them are so stressed that they undeperfom‚ but this doesn’t occur because the lack of their abilities but because they have to cope with high level of exam stress. They are under a pressure of possible failure‚ or unsuccess which results in underperformance. * CAUSES OF EXAM STRESS
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(2003) by Steven Di Pilla‚ said that the procedures and controls should be in place together and document key information immediately after the event. Employees should be trained in what their roles will be in their event they must respond to an accident. Employees should be instructed to not make any statements that may imply fault. Failure to act on what is learned from the investigation could expose employees to potetial hazards and expose employers to potential citations and fines. (Robert A
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Road safety is increasingly becoming a major killer and a worldwide concern. A child is killed in an accident every three minutes. Everyday more than one hundred people are killed due to lack in road safety. Around six thousand people are injured due to these small mistakes of a driver. Many people look at road safety as non-essential‚ but this a major topic of accidents occurring every minute nowadays. . Road accident is a global tragedy with ever-raising trend. To avoid these‚ a driver should
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PROJECT LOCATION The project is located in the city of Dar es Salaam. The Works for the first phase cover a length of 20.9 km starting at Kivukoni Ferry to Kimara Mwisho including sections of Kawawa Road from Magomeni to Morocco and Msimbazi Road from Fire to the intersection with Nyerere Road. The Works will also include construction of 29 ordinary bus stations (bus stops) within roadway; 5 bus terminals and 2 bus depots along the project corridor as illustrated in Figure 1 below. Figure
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Active and passive transport are biological processes that move oxygen‚ water and nutrients into cells and remove waste products. Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration. On the other hand‚ passive trasport moves biochemicals from areas of high concentration to areas of low concentration; so it does not require energy. Comparison chart Active Transport Passive Transport Definition Active
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