Lab 5 The Diffraction Grating Chinua McDonald Objective: To measure the wavelength of light with a diffraction grating. Theory: The two types of diffraction gratings are the transmission and reflection gratings. They are made by ruling on a piece of glass or metal a number of evenly spaced lines with a fine diamond point. Diffraction phenomena can be analyzed in terms of Huygens’ principle‚ according to which every point on the wave front of a wave should be considered as a source
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Balance Lab of a Copper Slug and Sodium Chloride (NaCl) on a Centigram and Electronic Scale PURPOSE/INTRODUCTION The purpose of this experiment is to learn how to weigh a substance on a centigram scale and an electronic scale through direct weight or by weight difference. The hypothesis is that all scales used should show the same weight for a given sample. The experiment should show precision and accuracy of the equipment being used. This will allow a better understanding on how to properly
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Work Measurement on Katsa Bag Production (Gifts and Graces: Cainta‚ Rizal) I. Rationale Environmental issues and problems started to arise last decade. Awareness and drive to solve these problems has grown to 89% (NIHERST‚ 2008) since 2008. This has resulted to different campaigns and movements such as the Earth Hour Campaign‚ where everyone is encouraged to switch off household lights for an hour and the birth of eco-friendly products into the market. One of the most in demand and popular
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. TEKNIK MENJAWAB SOALAN FIZIK KERTAS 2 SPM 2011 Format soalan dan jawapan soalan no. 8. Diagram 8.1 and Diagram 8.2 show two identical wheelbarrows of same mass and load being pushed and pulled by a gardener respectively. (a) What is meaning the force ………………………………………………………………………………. [1mark] (b) In the Diagram 8.1 and Diagram 8.2‚ (i) draw the direction vertically force by the gardener on the wheelbarrow’s
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Lab Techniques & Measurements Pre Lab Questions: (4pts) 1. What will you learn after completing the lab? -The experiment will introduce different level of precision and measuring to the appropriate decimal place and will be familiar with measurements and weight. 2. Write the symbols and equation used to make a dilute solution from concentrated or stock solution. - The concentration of substance is described as molarity and this can be expressed as – Molarity
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cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After the characterisation‚ the stress gene isolation assist the further understanding of the gene on LAB be giving different stress
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Pearson Assessment‚ formally know as Harcourt Brace Educational Measurement is a test publishing company that provides educational assessment assistance for grades K-12. They offer products and services for scholastic aptitude and achievement tests administered in school systems across the United States. Pearson Assessment furnishes catalogs that include descriptions of test‚ uses‚ cost‚ administration time‚ and other similar information that are useful to schools when selecting appropriate test
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United States and the United Kingdom- the Reid Technique (United States) and the PEACE model (United Kingdom). Both are used to psychologically understand the suspect’s story of the crime and to purposely attain any important information possible. However‚ the Reid technique is more aggressive than the PEACE model. The purpose of the article was to express the concern that the authors have for the techniques of these models‚ especially the Reid technique‚ which they find very aggressive and inhumane
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strategic options 2 Techniques for Exploration Focus Groups Secondary Data Analysis Experience Surveys Projective Techniques Word association Sentence Completion Storytelling…etc. 3 Techniques for Exploration Focus Group A group of 6-10 people who discuss a subject under the direction of a moderator. Focus group interviews are not a question-and-answer session‚ rather the group members discuss a topic in some detail in an open and detailed way. 4 Techniques for Exploration Use
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Information paper for health professionals Inhaler technique in adults with asthma or COPD Incorrect technique when taking inhaled medications frequently prevents patients with asthma or chronic obstructive pulmonary disease (COPD) from receiving the maximal benefit from their medications. Recent studies confirm that: • regardless of the type of inhaler device prescribed‚ patients are unlikely to use inhalers correctly unless they receive clear instruction‚ including a physical demonstration
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