Error Analysis: Force constant in springs Maria Loraine Menorca National Institute of Physics‚ University of the Philippines Diliman‚ Quezon City lorainemnrc@gmail.com Abstract This experiment aims to fully understand the analysis of possible errors in the measurement of the force constants in different spring systems. Springs can be utilized to store and release energy. According to Hooke’s Law‚ the response of a spring to external forces is characterized by the equation F = -kΔx. In this experiment
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______________________ Evaluation of the Gas Law Constant Objectives In this experiment‚ we will determine the Ideal Gas Constant‚ R‚ which relates the number of moles of gas present to its volume‚ pressure and absolute temperature. Background To see how "R" was derived‚ we must look at the proportionalities defined by the other fundamental gas laws. For example‚ Charles’ Law showed us that the volume of a gas sample is proportional to its absolute temperature at constant pressure. Thus V ∝ T abs . In addition
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Title of Experiment 12: The Effect of Ionic Strength on the solubility of an Electrolyte Aim: The purpose of this experiment was to determine the thermodynamics variable of enthalpy‚ ∆H for the dissolution reaction of boric acid in water. The solubility of boric acid was measured over a range of various temperatures by finding out at what temperature crystallization began for solution of different molarities. A graphical relationship between the natural logarithm of molal concentration and the inverse
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Lab – Solubility Curve for Potassium Nitrate I. Purpose: To plot a solubility curve for potassium nitrate in aqueous solution. II. Safety: Wear eye protection throughout the experiment. Be cautious of hot water. Wash hands if you come into contact with potassium nitrate. III. Procedure: 1. Carefully weigh out your assigned mass of potassium nitrate on a piece of weigh paper. Carefully pour the sample into the large test tube. 2. Add 20. mL of distilled water to the tube.
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Is Organic Food Worth It? Organic farming began in the late 1940’s in the United States‚ and in recent years it has seen a dramatic increase in popularity. The sales of organic food have been increasing by about 20 percent a year over the past decade. The general belief is that organic items tend to be better for the consumer and the environment when compared to non-organic items. Organic foods are produced without the use of most synthetic fertilizers‚ sewage sludge‚ pesticides‚
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of mobility for users with laptops and smart phones while being able to stay connected to the internet by different networking topology. Wide Area Networks are used to connect server machines and computers across continents are countries for constant information updates. Wide Area Networks‚ are used across the globe‚ many networks connect with one another across continents to create one giant Wide Area Network. Wide Area Networks use optic fibre as their communication medium. The largest example
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with supply and demand. But this is not a solution‚ it is instead almost adding to the problems our society faces today. This is where organic farming comes in. Although it may be hard to change society’s long standing opinion that mass-production by any means necessary is the right way to go‚ organic farmers are now making a larger appearance on the world stage. Organic farming can be the solution‚ and it is possible to feed a booming population through this type of farming if three simple things are
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In the first group of four reactions‚ Iron phosphate and calcium phosphate are the two products that are insoluble in water. In the three of the four reactions a cloudy white or yellow formed. This indicated the formation of a precipitate‚ caused by the generally insoluble phosphate anion. Potassium chloride‚ Iron nitrate‚ and potassium sulfate where the products which were soluble in water. With these products there was no evidence of a precipitate forming. 2. Based on the results from reactions
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Can salt change water’s density? I conducted an experiment using common household items to find an answer to my question. The procedure involves filling two cups with two hundred fifty milliliters of water. Then‚ mixing teaspoons of salt in water one at a time‚ until you’re able to submerge a raw egg in the solution and have it float up. My hypothesis is‚ salt does infact change water’s density‚ and if the egg floats it’s proof of density change in the water‚ because it must be less dense than the
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semi-educated people aggregating into centers clustered around factories. When the view is combined with what business organizations are designed to do -- take raw materials and convert them as quickly and efficiently as possible into commercial products that will make a profit -- the comparison of organization to machine is easily made and readily apparent. As in the new machines available during the industrial revolution‚ organizations can be seen as composed of many "parts" which are the individual
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