Design Objective: Find the standard molar enthalpy of combustion for magnesium. Manipulated Variables- volume of HCl‚ length of magnesium strip‚ mass of magnesium oxide‚ Controlled Variable- type of calorimeter (Styrofoam cup) Responding Variable- change in temperature Procedure: 1. Cut out 3 pieces of magnesium strips each with lengths of maximum 5 centimeters. 2. Measure and record the lengths of the magnesium. 3. Scrub the magnesium strips with steel wool to clean out impurities
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machinery‚ such as transformers‚ switches‚ electrical appliances and types of generators‚ and are considered in fields involving communications‚ radar‚ aerospace guidance‚ medical and biomedical research and computers. ENVIRONMENT Precision is a very regarded value for an electrical engineer. The use of hands on techniques and a vast knowledge of mathematics makes for the engineer to be very detailed in his or her work. Must be creative and initiating‚ and must be perspective
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Edward Lee Glick English 10 HN 23 October 2012 Sophomore Portfolio Reflection for English Throughout the course of the first quarter‚ I realized that sophomore year is very different from freshman year. There is more time commitment‚ more effort‚ and overall more experience in learning new materials. In English during the first quarter I obtained three learning goals through specific activities. The first learning goal that I grew was acquiring and employing new vocabulary to further understandings
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Classical and Quantum mechanics are the two main fields of mechanics in physics. Classical mechanics came a few hundred years before Quantum mechanics. Subsequently it is less accurate and less reliable then the more recent mechanic field of Quantum mechanics. Despite being outdated‚ Classical mechanics can still be used for many everyday problems with bigger and slower moving objects. However‚ when dealing with extremely fast moving or small subatomic particles a Classical approach will not
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A Practical Guide to Sampling Statistical & Technical Team This guide is brought to you by the Statistical and Technical Team‚ who form part of the VFM Development Team. They are responsible for advice and guidance on quantative‚ analytical and technical issues. For further information about the matters raised in this guide‚ please contact: Alison Langham on ext. 7171 This guide is the latest in a series on sampling. It has been produced in response to a large number of requests
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replacing and‚ or optimizing current systems‚ science and engineering for better productivity. For such processes‚ errors arising from bias‚ misconceptions and qualitative mistakes are inevitable. The very fallible nature of man makes errors‚ in precision measurement and deductive analysis of ideas‚ certain in the quality of the resulting successes of every empirical research. There are essentially two approaches to research‚ both of which make certain “there is no hope of doing perfect research”
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solve for volume at the experimental conditions of temperature and pressure. A comparison to the experimental volume of hydrogen gas obtained from the experiment is then made. The amount and percent errors will demonstrate the experimenter’s accuracy and precision. Part II: Data See attachments. Part lll: Calculations See attachments. Part lV: Results and Discussion When gases are collected by water displacement the volume of gas above the water includes not only the gas being bubbled
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for total rainfall plus snowfall in Middletown‚ CT is eleven days( n.d.) An extended (10 day) weather forecast shows a 40% chance of rain on April 9‚ 2011 ( n.d.). According to the National Oceanic and Atmospheric Administration (NOAA)‚ the accuracy of 6-10 day precipitation forecasts for the continuous United States stands at 40%. Using probability statistical analysis‚ the decision to celebrate her birthday indoors or outdoors will be made. Probability Concepts and their Application It
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point where the retrieval accuracy becomes saturated. Experimental results show that the proposed method yields higher retrieval accuracy than some conventional methods even though its feature vector dimension is not higher than those of the latter for six test DBs. Especially‚ it demonstrates more excellent retrieval accuracy for queries and target images of various resolutions. In addition‚ the proposed method almost always shows performance gain in precision versus recall and in ANMRR
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sufficient detail: (a) (2 pts) What are the features of an electronic balance? Include all of those discussed in the video. Answer: Electronic balance features including electronic read-out and the tare. Electonic balance can measure mass to the precision of 0.0001. Electonic balance has the tare feature which resets a balance to zero in order to get the weight of the sample‚ and not the container of the sample. It has enclosed glass to contain the substance being measure (Thinkwell‚ 2012). (b) (1
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