aerodynamic lift force and engine’s thrust so that the plane flew with constant velocity. 3. The spring was extended to 3cm under mass of 500g. Determine the spring constant. 4. The distance between two planets of masses 25x1025kg and 30x1025kg is 1012km. Calculate the attractive force between them. 5. The load with mass m=1.5kg is attached to the string of length l=1.5m and moves along a vertical circle with constant velocity v=1.5m/s. What are the maximum and minimum tensions in the string
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Salt is made up of 40 percent sodium and 60 percent of chloride‚ is a very important part of daily lives as it helps maintain your blood’s water content‚ balances acids and bases in your blood‚ and it helps in the movement of electrical charges which are in your nerves throughout your muscles. A human being should consume about 2400 mg of salt daily. On average‚ humans tend to go over the recommended amount. The food industry adds 75 percent of the sodium that we humans consume. The following additives
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ISMAIL M13D Name : SITI ALIA IZZANI BINTI ISMAIL Class : M13D Date : 6th September 2013 Title : Movement through the plasma membrane Hour : 2 hours Assessment : Design Aim : To study the effect of lipid solubility of molecules on permeability of plasma membrane of animal cell. Introduction : Diffusion: In general‚ diffusion process occur when there is a concentration gradient between two region .Molecules (other than water) will move by diffusion as
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Gravimetric Analysis of a Chloride Salt CHEM 1001 Purpose: To illustrate typical techniques used in gravimetric analysis by determining quantitatively the chloride content in an unknown soluble salt. Theory: AgCl(s) is a very insoluble solid‚ yet still does have some solubility. Because of these traits‚ the following reaction is able to occur: Ag+(aq) + Cl−(aq) → AgCl(s) . This reaction is able to occur in both directions. When a soluble silver salt such as AgNO3 is added to a solution containing
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The Native Hawaiians Right to Self Determination Monikalynn Hawkins ANT 101 Introduction to Cultural Anthropology Dr. Ronald K. Bolender October 22‚ 2009 Ancient Hawaiian genealogy suggests settlement of the islands by Tahitian navigators sometime between A.D. 300 and A.D. 800. (Trask‚ 1993‚ p.4) Before the coming of colonizers‚ the native society was organized as a familial society‚ consisting of tribes and chiefdoms‚ which provided
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| | | |Chem201L | | Determination of an Unknown Compound using Mixed Melting Point Method Winnie Adrian Ibanez‚ Jerome Allan Japitana‚ and Dante Jimenez III Group no. 7‚ 2Chem a Department of Chemistry‚ College of Science‚ University of Santo Tomas‚ España‚ Manila‚ 1015
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The Solubility of Potassium Nitrate Aim: The aim of this experiment is to find out by how much the solubility of potassium nitrate into distilled water increases when the solution is heated‚ and if yes‚ by how much. Hypothesis: According to data on the internet‚ 3.75 × 10¹ moles of potassium nitrate dissolve in 100g of water. I believe this information may be correct. I also believe that as the solute is absorbing outside heat‚ the energy is increased causing it to dissolve both faster‚ with
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The data collected supported the hypothesis and the tablets were significantly more dissolved than the gelcaps and caplets. This experiment could be changed by having a component stir the acetaminophen and the water together. Introduction The solubility of medicine is important because the quicker it dissolves‚ the quicker is can start working. There are many different forms of Acetaminophen on the market. This experiment is an attempt to discover which form of Acetaminophen will dissolve the quickest
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the trans‚ trans-1‚4-diphenyl-1‚3-butadiene‚ which is formed by a Wittig reaction along with the cis‚ trans isomeric diene. The reaction is carried out in two steps. First the Wittig salt is obtained through a simple nucleophilic displacement of chloride ion by triphenylphosphine. When treated with base‚ the Wittig salt forms a ylide which is a carbanion that acts as a nucleophile and adds to the carbonyl group. In this experiment‚ cinnamaldehyde is used as the carbonyl compound and yields mainly the
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Purpose: Our purpose here to determine the affects of temperature on potassium nitrate’s solubility in water. Materials Used in the Experiment: Latex gloves Laboratory coat Safety goggles Thermometer Stir rod Test tubes Beaker Weighing dish Hot plate Potassium nitrate Distilled water Description of the Object of the Experiment Potassium Nitrate: The chemical compound potassium nitrate is a naturally occurring mineral source of nitrogen. It is a nitrate with chemical
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