adjusting the perpendicular distances. When applied force is weight‚ modification in masses added is also done. Once equilibrium is achieved‚ or when the beam is not moving at a horizontal position‚ we can calculate for the unknown forces applied through the utilization of this principle. We balance the system given the ample forces acting on it. In general‚ application of Newton’s Second Condition of Equilibrium is applied here. By applying it‚ we could get the magnitude of one force acting on
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to a dc supply by using a rectifier. The dc supply is then converted to a variable-frequency ac supply‚ which can maintain a constant air-gap flux in the motor by an inverter. 2.3 Synchronous speed When the balanced three-phase currents flow through three-phase stator windings of the motor‚ a rotating magnetic field or magnetic motive force (mmf) is produced. The speed of the rotating mmf is called the synchronous speed and it depends on the supply frequency and the number of the poles in the
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either to inhibit virus replication‚ without harming host tissues or to interrupt the cell processes or structures of bacteria‚ fungi‚ and protozoa. This lab has brought great interest to me because this is the way physicians’ control/treat infectious disease within our bodies. In this lab‚ chemotherapeutic agents were evaluated by the disk-diffusion method. Chemotherapeutic agents are placed on the surface of a Petri plate containing Mueller-Hinton agar‚ which allows the agents to diffuse freely‚
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Synthesis of Butyl Benzoate Using Phase Transfer Catalysis The objective of the experiment is to synthesize the butly benzoate by nucleophilic substitution and characterize it by IR spectroscopy. The percent yield of the final product is determined after the synthesis. Procedures: 2.0 mL of 1-bromobutane‚ 3.0 g of sodium benzoate‚ 5.0 mL of water‚ 4 drops of Aliquat 336‚ and a boiling stone were placed in a 50mL round-bottomed flask. The reaction mixture was refluxed for 1 hour and the flask
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Topic: Author Philip K. Dick‚ through his novel‚ Do Androids Dream of Electric Sheep‚ shares his knowledge of entropy‚ through character development‚ dialogue and experiences. This progression towards an “end” is defined as entropy; the idea that chaos is ever increasing and consequently‚ order is ever decreasing. Thesis Statement: Throughout the novel Do Androids Dream of Electric Sheep? the theory of entropy is discussed and dissected for better understanding. Through character experience‚ concepts
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Job Safety Analysis or Job Hazard Analysis All employers have duty of care to individuals‚ staff‚ contractors or third parties in the workplace. It is also a legal requirement that organizations should document any health and safety risks that have been identified in the workplace. Equally‚ it is necessary to record the actions taken to reduce those risks What is a Job Safety Analysis or Job Hazard Analysis? One way to increase the knowledge of hazards in the workplace is to conduct
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new policies into a jurisdiction. The analysis of policy innovation and diffusion is important in explaining policy introduction and the non-incremental aspect of policy change. This paper is my response to the literature by Frances Stokes Berry and William D. Berry titled “Innovation and Diffusion Models in Policy Research” as well as the article by Charles R. Shipan and Craig Volden called “The Mechanisms of Policy Diffusion”. In this essay‚ I maintain that the unified model proposed by Berry and
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Trans-Dichlorobis(ethylenediamine)cobalt(III) chloride 1. About 16g of cobalt(II)chloride hexahydrate is dissolved in 50ml of distilled water in 250ml of Erlenmeyer flask. 2. 60ml of 10% solution of ethylenediamine is added into the flask. 3. A vigorous stream of air is being drawn through the solution for about 1-2 hours 4. 35ml of concentrated hydrochloric acid is added 5. The solution is then being evaporated on a steam bath until a crust forms over the surface. 6. The solution is cooled and stand overnight before the bright
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Abstract: The Enzyme Lab results where when the liver was frozen‚ its reaction was fast‚ and when it was hot‚ it was slow‚ and the liver that was at room temperature reacted slowly to medium. Introduction: The Enzyme Lab is to conduct investigations to determine the most favorable conditions for the most efficient enzyme activity. Variables to be used testing include temperature‚ pH values and surface area. Enzymes are proteins that speed up the rate of chemical reactions‚ which would otherwise
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Science Lab. A. Arnold Tuesdays @ 2:30 September 30th‚ 2011 Lab Report: Nuclear and Cell Division. PART A: Stages of Mitosis in my own words. 1. Interphase: DNA has formed already‚ but it remains in the simple form of chromatin. Chromatins are structures that are loosely coiled in the cell.3 I also observed during my lab that this was the only stage where I could still see a nucleus and nucleolus intact within the cell; this is because it’s the only stage where the nuclear membrane has not
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