November 2009 extended essay reports BUSINESS AND MANAGEMENT Overall grade boundaries Grade: Mark range: E 0-7 D 8 - 15 C 16 - 22 B 23 - 28 A 29 - 36 The range and suitability of the work submitted The range and suitability varied both between centres and within centres. Some candidates produced excellent‚ very interesting‚ well researched pieces in terms of sources and the use of critical thinking/evaluative skills‚ combined with well substantiated conclusions and recommendations. The difference
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water is 25.0 °C. A 75.0-g piece of iron initially at 350.0 °C is dropped into the water. What is the final equilibrium temperature of the system assuming that no heat is lost to the outside environment? Heat and Phase Change: Latent Heat The Transfer of Heat The heat conducted through a bar is The Stefan - Boltzmann law gives the radiant energy emitted or absorbed by an object: Radiation Ex: The sun shines directly on one side of a flat black panel on a spacecraft which has an area
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Forced Convection Heat Transfer I. Introduction This laboratory deals with forced convection‚ forced convection can be considered as a staple of heat transfer. That is to say that forced convection can be found in almost any heat transfer problem‚ and thus understanding its importance and how it affects a given problem is one of the more important learning objectives/outcomes of heat transfer. When dealing with forced convection the most important section‚ after understanding how convection
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Extra Credit Assignment Energy Transfer in living systems Energy is the capacity to do work. All living organisms require energy for carrying on their vital metabolic activities. The primary source of energy for living system is solar radiation. The radiant energy of sunlight cannot be utilized directly by all living organisms. This ability rests only with the green plants. All the other organisms have to meet their energy requirement only through the green plants. Energy that flows in the living
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[pic] AEROSPACE ENGINEERING LAB 1 (MEC 2700) LABORATORY MANUAL JULY 2007 Table of Contents Experiment 1: Heat Capacity of Gases Experiment 2: Thermal and Electrical Conductivity of Metals Experiment 3: Heat Pump Experiment 4: Heat Conduction Experiment 5: Free and Forced Convection Experiment 6: Thermal Radiation Experiment 1: Heat Capacity of Gases 1. BACKGROUND The
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Students should not attend school year-round. Keeping schools open year-round would have negative consequences. For example‚ it would cost extra money to keep schools open for the year. District 39 would have to reorganize its budget in order to keep up with year-round school. This is because the district would have to pay to keep school services functioning‚ such as clubs‚ buses‚ school lunch‚ and electricity just to name a few. It would cost a lot of money to keep the entire building air-conditioning
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Principles of Mass Transferand Separation Processes Binay K. Dutta Universiti Teknologi Petronas Malaysia New Delhi-110001 2009 PRINCIPLES OF MASS TRANSFER AND SEPARATION PROCESSES Binay K. Dutta © 2007 by PHI Learning Private Limited‚ New Delhi. All rights reserved. No part of this book may be reproduced in any form‚ by mimeograph or any other means‚ without permission in writing from the publisher. Cover photo — Courtesy: Haldia Petrochemicals Limited ISBN-978-81-203-2990-4
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Heat Transfer Through Jacket Objective The objective of this example is to analyze heat transfer in a pilot plant using simulation models. The first step is to use pilot plant data to calculate heat transfer parameters. The second part involves using simulation models to examine the trade-off between jacket parameters and heating times. Process Description Assumptions: The stirred tank is assumed to be perfectly mixed. The contributions of agitator work‚ heat loss to environment
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Embryo transfer in cattle has gained considerable popularity with seed stock beef producers. While most modern applicable embryo transfer technology was developed in the 1970s and 1980s‚ the history of the procedure goes back considerably farther. ‘‘Walter Heape performed the first embryo transfer in Angora rabbits in 1890’’ (J.C. Remsberg‚ ‘Herdsmen and vets benefit from E.T. training’). ‘‘Embryo transfer in livestock began in the 1930s with sheep and goats‚ but it was not until the 1950s that Jim
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Operational Readiness and Airport Transfer (ORAT) For King Abdull Aziz International Airport INTRODUCTION Different types of operational problems are witnessed when commissioning new facilities‚ especially during the first day of operations‚ potentially resulting in poor performance and disruptions reflecting negatively on the organization. Many organizations require carrying out a readiness assessment of the new systems and facilities An operation readiness strategy will allow airport operators
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