Page 1/3 09/2010 SE 110.22 Forces in an Overdeterminate Truss The picture shows SE 110.22 in a frame similar to SE 112. * Comparison of forces in statically determinate and overdeterminate trusses1 * Bars with strain gauge full bridges to measure bar force1 * Computerised evaluation of experiments Technical Description Overdeterminate trusses are employed where overdimensioning is purposely required because safety must be maintained in the event of failure of an element‚ such as in aircraft
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Purpose To check whether mass is gained or lost during a Chemical reaction. Hypothesis Equipments and Materials • Eye protection • Test tube • 250 ml Erlenmeyer flask and stopper • Weight Balance • Antacid tablet • Dilute solutions of o Sodium Hydroxide‚ NaOH(aq) o Iron(III) Nitrate‚ Fe(NO3)3 • Funnel • Cylinder Procedures 1. Put eye protection on for safety purposes. Part A: Reaction between Iron(III) Nitrate and Sodium Hydroxide. 2. Take two cylinders and fill one (full)
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References: [1] Addison‚ Ault. Techniques and Experiments for Organic Chemistry 4th ed. USA: Allyn and Bacon Inc.‚ 1983. [2] Basic Organic Chemistry Laboratory Manual‚ Institute of Chemistry‚ College of Arts and Sciences. University of the Philippines Los Baños. 2004. [3] Organic Chemistry Laboratory Manual. Institute of Chemistry. University of the Philippines Diliman. 2008. [4] McMurry‚ J. Simanek‚ E. Fundamentals of Organic Chemistry 5th edition. Thomson Brooks Cole. 2000.
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Purpose: To find out the densities and to find out the name of the unknown metals. (Based on the extensive and intensive properties) Check up the words mass‚ volume‚ density‚ extensive properties‚ and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders
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animal though? In this experiment we are using lab mice‚ Mus musculus‚ to see if the introduction of a predator scent (fox urine) increases‚ decreases‚ or has no effect on the metabolic rate within them. We will calculate the mass specific metabolic rate and use a t-test to determine if there is a significant change in metabolic rate when the mouse is exposed to the predator urine and when it is not exposed. With these mice being born and raised in a lab‚ the fox urine should have no effect on the metabolic
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Abby Goldschmidt Honors Biology 2° Mrs. Gempel September 3‚ 2015 Daphnia Lab Results Paper Abstract The goal of the study was to observe the effects of multiple chemicals on a Daphnia magna’s heart-rate compared to a control (pond water). The different chemicals were caffeine and alcohol. The heart-rate was the main variable in this experiment. The Daphnia’s heart-rate was observed for 15 seconds and then multiplied by 4 to show its heart-rate in one minute. This was repeated 4 times for each
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Effects of habitat characteristics on nest predation and nest-site selection. (J Wildl. Manage. 53: 129-137.) Burke‚ D‚ M (2004). “Patterns of nest predation on artificial and natural nests in forests” . (Conservation biology : the journal of the Society for Conservation Biology. Vol. 18‚ no. 2‚ 2004. Blackwell Science. p 381-388) Kathryn E. Sieving "Nest predation and avian species diversity in northwestern forest understory". Ecology. FindArticles.com. 27 Apr‚ 2011. http://findarticles.com/p/articles/mi_m2120/is_n7_v79/ai_21231384/
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Phospholipids are made up from many smaller molecules combine these are: fatty acid chains‚ glycerol‚ phosphate and choline. Two of the carbons of the glycerol are joined to two fatty acids in a condensation reaction creating ester bonds. The final carbon is bonded to the phosphate molecule‚ which in turn is connected via a covalent bond to choline. Due to the polar nature of the glycerol phosphate and choline molecules‚ they create a hydrophilic area (known as the hydrophilic head). Whereas‚ the
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Introduction: To achieve genetic experiments with haploid organisms‚ genetic strains of different genotypes must be crossed from one another. Following fertilization and meiosis‚ the meiotic products can be analyzed as the ascomycete fungus‚ Sordaria fimicola. Sordaria can be used as a model to study meiotic segregation. The trait followed was the ascospore color. Ascospore color is a single gene trait therefore it is easily observed under a light microspore. Which allele is dominant is very tough
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The objective of this macromolecules lab was to identify the presence any of the major macromolecules in various every day food items. The three macromolecules that this lab was carried out for were carbohydrates‚ lipids‚ and proteins. There were five different experiments conducted and each of those experiments had one factor in common‚ they all had the same controls. The controls in this lab activity were already set for the lab activity. The controls were the distilled water and the baking soda
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