Chosen practical example: 1. Load-limited design – wire ropes 2. Energy-limited design – spring in pegs 3. Deflection-limited design – paperclips 1. Load-limited design – wire ropes Wire ropes function as a tie. Hence the constraint is to withstand a certain tensile stress before failing by fracture. σ_f=(CK_1c)/√(πa_c ) If the objective to maximize the allowable stress‚ then‚ the material indices is simply M=K_1c CES (Cambridge Engineering Selector) is utilized to plot
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372400 The Importance of Grading While learning to tie shoes‚ children get encouragement and feedback when they first start. No one assesses their progress‚ they just try to help them learn to do it on their own. People learn things all the time without being graded or ranked‚ so where does the obsession with grades in school come from? Some would argue that not grading students on assignments they have completed will improve the quality of learning‚ while others believe it gives students
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Practical Book Review of Petersen Text Lori Edwards Azuru Liberty University Summary James Petersen (2007) illustrates an innovative way of communicating in the book‚ Why Don’t We Listen Better? Communicating and Connecting in Relationships. This book is divided into five sections. In part one Petersen (2007) discusses the “Flat-Brain Theory of Emotions” (p. 10-11). This is his way of explaining what occurs when one is overcome with emotions‚ and can no longer communicate with
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Prac Report Problem: How does the increase mass affect acceleration and the force of the accelerating object? Purpose: The purpose of the practical is to find how mass affects acceleration and how it affects also the force of the accelerating body. To do this we are going to do the ticker tape experiment where an accelerating body pulls a tape through a consistent 50 dot per second ticker timer. The acceleration body in this experiment will be a small trolley pulled by a string that is pulled
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Practical to Investigate Diffusion and Osmosis Collect the following equipment: 1x beaker 1x length visking tubing 1x pipette 1x pair safety glasses Instructions – always wear safety glasses! 1. Fill your beaker ¾ full with water 2. Tie a knot in one end of your visking tubing 3. Using your pipette‚ transfer some concentrated sugar solution to the inside of the visking tubing‚ leaving enough space to tie a knot in the open end 4. Add a few drops of red food colouring to the inside of the visking
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DRDO Science Spectrum‚ March 2009‚ pp. 4-11 DRDO SCIENCE SPECTRUM 2009 © 2009‚ DESIDOC Aircraft Performance Improvements-A Practical Approach S.K. Jebakumar Centre for Military Airworthiness and Certification‚ Marathalli Colony‚ Bangaluru- 560 037 ABSTRACT An aircraft is designed based on various wind tunnel testing‚ computational analysis‚ previous design experience etc. In most of the aircraft programs the design objective could not be met with the first prototype design itself. Before the
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learning resources enhances understanding of abstract ideas and improves performance. Adequate learning resources like text books‚improvised weather instruments‚relevant child friendly library books‚ wall maps and the exercise books are of paramount importance. This makes learning easier of subjects like Social Studies very abstract to the pupils. Further still‚it has been proven that school facilities have a direct effect on teaching and learning. Text books enable the pupils to follow the teacher’s
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Education. Why or Why not? Education‚ define as the art of systemic learning inspire every one of us‚ and educated human beings are able to possess the power of influence in academic discourses. If there’s no input‚ then there will be no output‚ and believe it or not‚ education allows people to be creative and innovative in developing our digital world. Generation after generation‚ the medium of providing education has improved in using interactive technology such as - digital projector‚ high-speed
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Heart Dissection Practical Report. Introduction On the of July 2002‚ a sheep’s heart was examined by dissection. The heart is a muscle in all mammalian bodies that is used to pump blood and nutrients throughout the body. A sheep’s heart was used in this prac because like the human heart it has four chambers and is similar in size. Two of these chambers are receiving chambers called the left and right atrium. The other two are pumping chambers called the right and left ventricle. The reliability
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strengths and weaknesses of the education students receive? Do you have any recommendations for its improvement? One of the most convenient ways to prepare students for the challenges they are doomed to face in the real world is to do it through the education process. Through education they should receive useful‚ uptodate information about the modern world that surrounds them. Russian education system is not an exception. Yet‚ no matter how good the education system may be in Russia‚ it has
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