NOT IN FAVOR. Personally I believe that the time is not in favor of WorldCom in undertaking one of the largest bond issues at the time. Even though there are many advantages with proceeding with the issue‚ I believe that the degree and the uncertainty raised by some of the disadvantages outweigh the advantages of going ahead with the $6Billion bond. In the table below are reflected both the advantages and disadvantages of proceeding with the bond. Advantages Disadvantage 1. MCI Merger‚ which
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Design Objective: Find the standard molar enthalpy of combustion for magnesium. Manipulated Variables- volume of HCl‚ length of magnesium strip‚ mass of magnesium oxide‚ Controlled Variable- type of calorimeter (Styrofoam cup) Responding Variable- change in temperature Procedure: 1. Cut out 3 pieces of magnesium strips each with lengths of maximum 5 centimeters. 2. Measure and record the lengths of the magnesium. 3. Scrub the magnesium strips with steel wool to clean out impurities
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physical quantity can be entirely accurate. It is important to know‚ therefore‚ just how much the measured value is likely to deviate from the unknown‚ true‚ value of the quantity. The art of estimating these deviations should probably be called uncertainty analysis‚ but for historical reasons is referred to as error analysis. This document contains brief discussions about how errors are reported‚ the kinds of errors that can occur‚ how to estimate random errors‚ and how to carry error estimates into
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Chapter four Self-Assessment For many individuals feelings of anxiety and uncertainty occur when they meet someone for the first time. The feeling of anxiety can be managed in a number of ways. One way that you can go about managing your anxiety is by giving a compliment. A majority of people enjoy receiving compliments because they make people feel good about themselves. In return you will most likely receive a compliment back which will make you feel a lot better about this first encounter. Another
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given to this error. The Least Count‚ uncertainty or maximum possible error are the terms normally used in a physics course‚ although this may vary with different syllabuses. The error made in an instrument can be compared with another by calculating the percentage uncertainty of each of the readings obtained. The one with the least uncertainty is always taken to measure objects‚ as all measurements are required with accuracy in mind. The percentage uncertainty is calculated with the following formula:
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Investigation of the factors affecting the period of vibration of a weighted cantilever Introduction The aim of the experiment is to find out how the period T of vibration of a weighted cantilever depends on the vibrating length L. Hypothesis: Assume the relationship between the vibrating period T and vibrating length L is in accord with the equation: T=kLn‚ where k and n are both constant values. According to the hypothesis‚ the vibrating period T and vibrating length L is a linear relationship
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by using a protractor). Repeat 2 times. 4. Divide the total time by ten to find the period of the pendulum and record. 5. Repeat steps 1-4 five times‚ decreasing the length of the pendulum by 10 cm incraments each test. Results table with uncertainties Pendulum length (cm) +/- 0.1 Time taken for 10 cycles (s) +/- 0.01 Period of pendulum (s) +/-0.002 Average Period of pendulum (s) +/- 0.002 Angle of maximum displacement (°) +/- 1 71.5 a) 17.06 1.706 1.714 20 b) 17.21 1
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DP Physics IA Thermal physics: Specific Heat Capacity of Metals Introduction: In this experiment we are going to measure the specific heat capacity of a unknown metal. To measure the specific heat capacity we will heat up the metal to certain temperature and release the metal in beaker filled with water. By knowing the mass and temperature of water filled in beaker‚ we will be able to calculate the specific capacity of unknown metal by change in temperature of beaker willed
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immersion heater into the water and turn on the power supply. Adjust the voltage across the immersion heater around 12 to 15 volts. iv) Measure and record time‚ voltage‚ current and temperature at regular intervals in a suitable table (include uncertainties) v) Draw a suitable graph that will allow you to find the specific heat capacity of the water. vi) Compare your findings with accepted values for water. Observations: One can observe the process of diffusion and the water changes its color
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In a passage from “The Great Influenza‚” John M. Barry expresses that the success of a scientist depends on their capacity to handle challenges. Using ethos‚ extended metaphor‚ and rhetorical questions‚ Barry characterizes science as a path of uncertainty. Barry’s use of ethos begins with a quote from Claude Bernard‚ who believed that “science teaches us to doubt.” Scientists must have the strength to doubt their beliefs and interpret their theories from different perspectives in order to find chinks
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