...Sergio Hernandez Jose Roque Paul Zuniga October 7th, 2012 Laboratory Report: Acceleration on an Incline Purpose: 0 Use a Motion Detector to measure the speed and acceleration of a cart rolling down an incline. 1 Determine the mathematical relationship between the angle of an incline and the acceleration of the cart. 2 Determine the value of free fall acceleration, g, by extrapolating the acceleration vs. sine of track angle graph. 3 Determine if an extrapolation of the acceleration vs. sine of track angle is valid. Materials: * Computer * Vernier computer interface. * Logger Pro. * Vernier Motion Detector. * Dynamics cart. * Meter stick. * Ramp. * Books. Procedure: 1. Connect the Motion Detector to the DIG/SONIC 1 channel of the interface. 2. Place a single book under one end of a 1 – 3 m long board or track so that it forms a small angle with the horizontal. Adjust the points of contact of the two ends of the incline, so that the distance, x, in Figure 1 is between 1 and 3 m. 3. Place the Motion Detector at the top of an incline. Place it so the cart will never be closer than 0.4 m. 4. Open the file “04 g On An Incline” from the Physics with Vernier folder. 5. Hold the cart on the incline about 0.5 m from the Motion Detector. 6. Click to begin collecting data; release the cart after the Motion Detector starts to click. Get your hand out of the Motion Detector path quickly. You may have to adjust the position...
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...resistance must be either absent or so small as to be ignored. When the object in free fall is near the surface of the earth, the gravitational force on it is nearly constant. As a result, an object in free fall accelerates downward at a constant rate. This acceleration is usually represented with the symbol g. Physics students measure the acceleration due to gravity using a wide variety of timing methods. In this experiment, you will have the advantage of using a very precise timer connected to the calculator and a Photogate. The Photogate has a beam of infrared light that travels from one side to the other. It can detect whenever this beam is blocked. You will drop a piece of clear plastic with evenly spaced black bars on it, called a Picket Fence. As the Picket Fence passes through the Photogate, the LabPro or CBL 2 interface will measure the time from the leading edge of one bar blocking the beam until the leading edge of the next bar blocks the beam. This timing continues as all eight bars pass through the Photogate. From these measured times, the program will calculate the velocities and accelerations for this motion and graphs will be plotted. Picket fen ce Figure 1 OBJECTIVE • Measure the acceleration of a freely falling body (g) to better than 0.5% precision using a Picket Fence and a Photogate. MATERIALS LabPro or CBL 2 interface TI Graphing Calculator DataGate program Physics with Calculators Vernier Photogate Picket Fence clamp or ring...
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...Question 1 (a) The House of Quality functions as a living document and a source of ready reference for related products and future upgrades. While it is a great communication tool at each step in the process, the matrices are the means and not the end. Its purpose is to serve as a vehicle for dialogue to strengthen vertical and horizontal communications. Through customer needs and competitive analysis, the House of Quality helps to identify the critical technical components that require change. Issues are addressed that may never have surfaced before. These critical issues are then driven through the other matrices to identify the critical parts, manufacturing operations, and quality control measures needed to produce a product that fulfils both customer needs and producer needs within a shorter period of development cycle time. The net effect of all of this is that the items that drive the company’s action are driven by the customer’s requirements. There is an increase in focus on the customer and an increased awareness of their wants. Because of this focus, the process leads to improved customer understanding and the ultimate outcome- a satisfied customer. The general format of the House of Quality consists of six components: - Customer requirements (HOWs) listing the requirements derived from customer statements. - Technical requirements (WHATs) comprising relevant and measurable product characteristics. - Planning matrix illustrating customer perceptions...
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...Experiment #6-FREE FALL FALLING BODIES OBJECTIVES: 1.To describe how the velocity and acceleration of an object change over time when falling under the influence of gravity and to explain why such changes are observed. 2. To determine gravitational acceleration by studying the velocity of a falling object as a function of time. INTRODUCTION: Everything on Earth is under the influence of it’s gravitational field keeping us from jumping of respected measure high.Along with this things that are on Earth,there are objects that are soon to be on Earth’s surface,falling objects have certain interactions with Earth’s gravity.Air resistance is a factor of free-falling objects.Since Earth has an atmosphere,the speed of which objects fall at are not constant. While you are falling, you will probably feel as if you are floating—or not even moving at all. Falling is relational—if there is nothing to fall toward, you may not even be aware that you’re falling. If there is no ground, gravity might be low and you’ll feel weightless. Objects will stay suspended if you let go of them. Whole societies around you may be falling just as you are. And it may actually feel like perfect stasis—as if history and time have ended and you can’t even remember that time ever moved forward. A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. ...
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...PUNJAB TECHNICAL UNIVERSITY KAPURTHALA Scheme& Syllabus of B. Tech. Mechanical Engineering [M.E.] 3rd & 4th Semester effective for Batch 2011 By Board of Studies Mechanical Engineering/ Production Engineering / Industrial Engineering Punjab Technical University B.Tech Mechanical Engineering (ME) Batch 2011 Approved on June 27, 2012 Third Semester Course Code BTME301 BTME302 BTME303 BTME304 BTME305 BTME306 BTME307 Course Name Load Allocation L 3 3 1 4 4 3 18 T 1 1 1 3 P 6 2 2 2 1 13 Contact Hours: 34 Hrs. Marks Distribution Internal 40 40 40 40 40 40 30 30 30 60 390 External 60 60 60 60 60 60 20 20 20 40 460 Total Marks 100 100 100 100 100 100 50 50 50 100 850 Credits Strength of Materials- I Theory of Machines-I Machine Drawing Applied Thermodynamics -I 4 4 4 5 4 3 1 1 2 1 29 Manufacturing Processes – I Engineering Materials & Metallurgy Engineering Materials & Metallurgy Lab BTME308 Strength of Materials Lab. BTME309 Applied Thermodynamics Lab Advisory Meeting BTME 310 Workshop Training* Total * Workshop Training will be imparted in the Institution at the end of 2 nd semester for Four (04) weeks duration (Minimum 36 hours per week). Industrial tour will also form part of this training. Fourth Semester Course Code BTME401 BTME402 BTME403 BTME404 BTME405 BTME406 BTME407 Course Name Strength of Materials – II Theory of Machines – II Fluid Mechanics Applied Thermodynamics - II Manufacturing Processes-II Fluid Mechanics Lab Manufacturing Processes...
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...Parekh – 315 Ankit shah – 317 Dishank Shah – 318 Fenil Shah - 319 * 2. Agenda Current Scenario Problems Faced Analysis Suggestions and recommendations Risks and contingencies * 3. Current Scenario • Toyota Motors Manufacturing (TMM) faces increasing problems with its seat supply. • Kentucky Framed Seat (KFS), is a single seat supplier for TMM. • KFS is responsible for the material flaws and missing parts as the major encountered defects. • These problems are increasingly occurring with an increase in varieties and demand for the seats. * 4. Problems Faced • Product proliferation problems with defective seats. • Company’s deviation from its normal production plan and lack of a recovery system. • Run ratio dropped from 95% to 85%. • This means 45 less cars were being produced per shift. • This translated in overtime of workers. • Too many cars needed off-line operations of one type or the another before they could go on shipping. * 5. Questions Raised • Will the sales company get cars on time as promised? • What does it mean to implement JIT and Jidoka principles to this situation? • Is TMM handling seat defects correctly on the line? • Is the current routine for handling seat-defect cars really a legitimate exception to TPS, or could it be a dangerous deviation from TPS? • Is there a way to kaizen TMM’s off-line routine? * 6. Analysis * 7. The Problem Rise in number of Camry’s with defective seats, leading to a reduced run ratio at the TMM Georgetown...
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...numerous technological advancements that have made it possible for humans to travel into space and explore what was previously only the subject of dreams and imagination. Early writings such as The Brick Moon by Edward Everett Hale illustrate how little was actually known about outer space, and the physical and practical limitations humans must overcome to escape Earth’s gravity. The Brick Moon is a science fiction short story written in the 1800s and it is one of the first known writings to describe the construction and launch of not only an artificial satellite, but also a space station (Wikipedia, 2011). The story The Brick Moon outlines some of the building blocks for modern day space technology and travel but the approach used in the book is impractical for real world application. The Brick Moon is written from the perspective of one of the main characters and recounts how he and his friends planned, funded, constructed, and eventually launched a satellite or manmade “moon” into space. The purpose of the Brick Moon was to act as a navigational aid for ships at sea. The idea was based around the North Star, which sailors used as a guide to determine their latitudinal location; the inventors wanted to launch the Brick Moon to orbit along the Prime Meridian so that sailors could just as easily gauge their longitudinal location (Hale, 1869). The characters even go so far as to consider the possibility of launching multiple moons to form a ring like Saturn’s around the Earth...
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...Does the "New Economy" Measure up to the Great Inventions of the Past? Robert J. Gordon Stanley G. Harris Professor in the Social Sciences, Northwestern University Research Associate, National Bureau of Economic Research April 28, 2000 draft of a paper for the Journal of Economic Perspectives _____________________ This research is supported by the National Science Foundation. I have benefitted from discussions on these topics with many people, especially Erik Brynjolfsson, Joel Mokyr, Jack Triplett, and the late Zvi Griliches. "The invention of the semiconductor transistor set in motion a technological revolution that is arguably even more impressive and pervasive than that of the Great Industrial Revolution of the last century." -- Flamm (1997, p. 1) "The chip has transformed us at least as pervasively as the internal-combustion engine or electric motor" -- Fortune magazine, June 8, 1998, pp. 86-87. The miracle of U. S. economic performance in the late 1990s was a source of pride at home, of envy abroad, and of puzzlement among economists and policymakers. 1 The Federal Reserve presided over rates of output growth believed only a few years earlier to be unachievable even for a few quarters, much less over the four glowing years 1996-99. As the unemployment rate inched ever lower, the Fed reacted with benign neglect, so that early in the year 2000 short-term interest rates were no higher than they had been five years earlier and long-term interest rates were considerably...
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...1. Introduction Succession planning is not an issue that many organizations address in any systematic way. Because many nonprofits are small (with fewer than 10 employees) and because they may be facing other organizational challenges, thinking about who the next executive director might be or what would happen if the director of finance suddenly left is not high on their priority list. There are many reasons why organizations need to be thinking about succession planning. The most important reason, of course, is that we rely on staff to carry out our missions, provide services and meet our organization's goals. We need to think about what would happen to those services or our ability to fulfill our mission if a key staff member left. Another reason to focus on succession planning is the changing realities of workplaces. The impending retirement of the baby boomers is expected to have a major impact on workforce capacity. Teresa Howe in "Succession Planning and Management" identified other emerging realities about the workforce in Canada: • Vacancies in senior or key positions are occurring in numerous organizations simultaneously and demographics indicate there are statistically fewer people available to fill them • Baby boomer retirements are on the rise just at the time when the economy is growing and increasing the demand for senior management expertise • There is no emerging group of potential employees on the horizon as in past generations (i.e. baby boomers...
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...Meeting the needs of gifted learners poses a challenge for most educators, thus gifted leaners need to be identified and nurtured for the benefit of gifted learners, educators and the community at large. This essay is going to examine 3 blanket characteristics of a gifted learner and suggest strategies to enhance giftedness in teaching and learning process. Eric (1985) groups characteristics of gifted learners into general behavioural, learning and creative features. A variety of approaches can be used to meet the needs of gifted learners in the classroom. The teacher or educator has the following our areas when developing the curriculum: * The content of the curriculum subject * The processes that engage the students * The products of their studies * The learning environment Definition of terms Giftedness Definition 1: Giftedness is ‘a synchronous development’ in which advanced cognitive abilities and heightened intensity combine to create inner experiences and awareness that are qualitatively different from the norm. This asynchrony increases with higher intellectual capacity. The uniqueness of the gifted renders them particularly vulnerable and requires modifications in parenting, teaching and counselling in order for them to develop optically (Columbus Group, 1991) Definition 2: Giftedness is the possession and use of untrained and spontaneously expressed natural abilities (called aptitudes or gifts) in at least one ability domain to a degree that places...
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...3.The rise of digital media has democratized fashion journalism, shifting traditional power relationships and producing different kinds of representation Discuss and critically evaluate this statement with reference to the fashion media. INTRODUCTION The digital revolution, including the mechanical, electronic and digital technology, took off in the 1980s. This revolution brought tremendous changes due to the computing and communication technologies. Analogous to the agricultural revolution and the industrial revolution, the digital revolution marked the beginning of the information age. The idea is that the current age will be characterized by the ability of the individuals to transfer information freely, and to have instant access to knowledge that previously would have been difficult or impossible to find. The main component of this revolution is the mass production of computers and mobile phones. As a matter of facts, the number of Internet users in 1990, being 2.8 million, increased by approximately 75.000% in the next eleven years, reaching 2.095 billion users in 2011. The positive aspect of this revolution is that it enhanced society’s growth and development at an impressive rate. The economic impact of the digital revolution has been enormous.Without the World Wide Web (WWW), globalization and outsourcing would not be at the level it is today. Other positive aspects are the interconnectivity, the ease of communication and the exposure to information. These aspects...
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...September 2011 School of Health and Society Department Computer Science Embedded Systems Indoor Positioning using Sensor-fusion in Android Devices Authors Ubejd Shala Angel Rodriguez Instructor Fredrik Frisk Examiner Kamilla Klonowska School of Health and Society Department Computer Science Kristianstad University SE-291 88 Kristianstad Sweden Authors, Program and Year: Ubejd Shala, Master’s Program - Embedded Systems, 2011 Angel Rodriguez, Master’s Program - Embedded Systems, 2011 Instructor: Fredrik Frisk, Dr, HKr Examination: This graduation work on 15 higher education’s credits is a part of the requirements for a Degree of Master in Embedded Systems Title: Indoor Positioning using Sensor-fusion in Android Devices Abstract: This project examines the level of accuracy that can be achieved in precision positioning by using built-in sensors in an Android smartphone. The project is focused in estimating the position of the phone inside a building where the GPS signal is bad or unavailable. The approach is sensor-fusion: by using data from the device’s different sensors, such as accelerometer, gyroscope and wireless adapter, the position is determined. The results show that the technique is promising for future handheld indoor navigation systems that can be used in malls, museums, large office buildings, hospitals, etc. Keywords: Sensor fusion, accelerometer, gyroscope, compass, INS, GPS, Wi-Fi, indoor navigation, smartphone, Android...
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...PHYSIC AL CONSTANTS CONSTANT Speed of light Elementary charge Electron mass Proton mass Gravitational constant Permeability constant Permittivity constant Boltzmann’s constant Universal gas constant Stefan–Boltzmann constant Planck’s constant Avogadro’s number Bohr radius SYMBOL c e me mp G m0 P0 k R s h 15 2p"2 NA a0 THREE-FIGURE VALUE 3.003108 m/s 1.60310219 C 9.11310231 kg 1.67310227 kg 6.67310211 N # m2/kg 2 1.2631026 N/A2 1H/m2 8.85310212 C 2/N # m2 1F/m2 1.38310223 J/K 8.31 J/K # mol 5.6731028 W/m2 # K4 6.63310234 J # s 6.0231023 mol21 5.29310211 m BEST KNOWN VALUE* 299 792 458 m/s (exact) 1.602 176 4871402 310219 C 9.109 382 151452 310231 kg 1.672 621 6371832 310227 kg 6.674 281672 310211 N # m2/kg 2 4p31027 (exact) 1/m0c2 (exact) 1.380 65041242 310223 J/K 8.314 4721152 J/K # mol 5.670 4001402 31028 W/m2 # K4 6.626 068 961332 310234 J # s 6.022 141 791302 31023 mol21 5.291 772 08591362 310211 m *Parentheses indicate uncertainties in last decimal places. Source: U.S. National Institute of Standards and Technology, 2007 values SI PREFIXES POWER 1024 1021 1018 1015 1012 109 106 103 102 101 100 1021 1022 1023 1026 1029 10212 10215 10218 10221 10224 THE GREEK ALPHABET PREFIX yotta zetta exa peta tera giga mega kilo hecto deca — deci centi milli micro nano pico femto atto zepto yocto SYMBOL Y Z E P T G M k h da — d c m μ n p f a z y Alpha ...
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...pedals – which can lead to sudden acceleration problems - is not likely to bring a quick end to the company’s current recall nightmare. Having already halted sales and production of eight of its top-selling cars in the U.S. - and recalled more than 9 million cars worldwide, in two separate recalls – Toyota faces the prospect of billions of dollars in charges and operating losses. The Toyota brand, once almost synonymous with top quality, has taken a heavy hit. While all the facts are not yet in, it’s clear that Toyota’s crisis didn’t emerge full-blown overnight. Fixing the problem and ensuring that something like it doesn’t happen again will require an all-out effort, from assembly line to the boardroom. Even then, there are no guarantees. Maintaining a good corporate reputation in the 21st century is tricky business indeed. Toyota’s case offers a number of valuable lessons for other business people and companies to consider. Here, for starters, are five: Aggressive growth can create unmanageable risk. Toyota’s desire to supplant General Motors as the world’s number-one car-maker pushed it to the outer limits of quality control. “The evidence that Toyota was expanding too much and too quickly started surfacing a couple of years ago. Not on the company's bottom line, but on its car-quality ratings,” writes Paul Ingrassia, a Pulitzer Prize-winning former Detroit bureau chief for The Wall Street Journal. Ingrassia, who has just authored a new book on the auto industry, notes that...
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...Applications of Newton’s Laws of Motion in One Dimension 3 Newton’s laws of motion are a very powerful tool that allows the study of a vast array of problems dealing with the motion of all the objects of our daily lives. Valid over an enormous range of distances, speeds, and masses, Newton’s laws only lose their predictive power in the microworld or when objects travel at extremely high speeds, much higher than we are capable of propelling ordinary objects (except in particle accelerators). In this chapter we continue our study of one-dimensional motion in three “case studies” of interesting example applications. The goal here is to see the power of Newton’s laws as well as to learn some interesting ideas about various types of motion along a single direction. We gain some valuable insights and tools so that when we generalize to study the motion of objects in the real three-dimensional world we are well prepared for that undertaking. The case studies in this chapter include motion when the net force is constant (we study the local gravitational force near the Earth), one-dimensional motion of an object in a fluid (where we show that there are frictional forces that vary with time), and the oscillatory motion of an object attached to a spring. After learning something about springs, we next consider the deformation of an elastic solid and the phenomenon of viscoelasticity. This is a topic of special interest in the study of structural biomolecules such as bone and blood...
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