In Northeastern tribes the people used dried bearskin‚ which was one of the artifacts displayed at the museum‚ primarily for bedding material. Although men usually hunted‚ women were responsible for preparing the pelts. After the flesh was removed from a skin‚ it was stretched out on the ground to dry. Pegs were then placed around the edge of the skin to keep it in place and reduce shrinkage. When it was also desirable to remove the hair‚ the next stage in the process was to tan the hide. Tanning
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conducted to find the specific heat of a metal as well as the heat of solution of a solid. Both experiments required the use of calorimetry to measure heat flow and temperature change. The specific heat of the metal was found by heating it in boiling water before transferring it to the calorimeter that was partially filled with water. After shaking the calorimeter‚ the temperature change was measured and recorded. This information was used to calculate the specific heat. The heat of solution of a solid
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Chemistry – Heats of combustion. To determine the heats of combustion of selected alkanols and to use this information to determine the heat of combustion for a longer chain alkanols. Formula ΔH=-mCΔT Heat of combustion ΔH/n = molar heat of combustion. Materials -100 degrees thermometer -glass stirring rod -aluminium beaker -electronic balance -bosshead and clamp -retort stand Method 1) Set up the apparatus as shown above. 2) Measure the weight of aluminium can 3) Use the
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Heat of Neutralization: Lab Report In part A of this lab I determined the heat capacity of a calorimeter made out of two Styrofoam cups nesting together with a cardboard top containing a hole in the middle. First I placed 50 mL of water in the calorimeter‚ waited five minutes for the water to reach equilibrium‚ and used the computer’s temperature instrument to record the final temperature of the system. Next I heated 50 mL of water in a 250 mL beaker until the water reached 43.1 C (approximately
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Isolation was a feeling that was often rare for rank officers to experience and if they did the emotion was never shown. Billy Prior experienced and felt isolation and the feeling of loneliness. Although Prior never directly say I’m lonely‚ Barker creates the opportunity to identify his feelings and link it with his actions‚ an example of this is when Prior and Sarah are out and he feels out of place. When he returns Rivers tells him that someone saw him without his hospital badge. His response was
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Running Head: Why Labor Unions Are No Longer Necessary Why Labor Unions Are No Longer Necessary Name Class Tutor Subject Date Labor unions in U.S.A are legally identified as representatives of workers in specific industries. The current duties of these unions surround collective bargaining‚ focusing on working conditions‚ benefits and membership status. These organizations are also responsible for representing their respective disputing members over
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No. 1: Heat Pump Experiment 1. Objective The objective of the experiment is to measure the Coefficient of Performance (COP) of a Heat Pump. 2. The experimental setup The equipment provided is a heat pump with pressure and temperature sensors placed at various locations. 3. Procedure Study the diagram and equipment provided and identify the various components of the Heat Pump – that is‚ the compressor (1-2)‚ the condenser (2-3)‚ the expansion valve (3-4) and the evaporator (4-1)
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a responsibility. Your company’s trucks may be on the roads all day and possibly all night. With that much travelling it is imperative that you ensure that your trucks and trailers are in the best condition possible. What should you do to ensure the safety of your fleet of trucks and trailers? Firstly‚ you need to ensure that your trucks are serviced regularly and are roadworthy. If you are the owner of a transport business or courier company‚ how often should you service your trucks? Trucks must
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examples from In the Heat of the Night. Step 1 - Pre-Writing/Outline Brainstorm for several character traits‚ using the sheet(s) provided. Then‚ try to narrow down your search to THREE good traits. How do you pick the best three? Ask yourself the following questions: **Do the traits explain the character’s round personality overall? **Do the traits show the character’s dynamic personality (how they were at the beginning versus the end‚ for example)? In your outline‚ explain
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Specimen Preparation: Samples and all test reagent and kit were brought into room temperature. In 2ml eppendrof tube approximately 220mg stool sample were taken. Washing buffer was prepared by adding distilled water . Procedure for Purification of DNA from Stool sample: i. 220mg stool sample were collected in a 2ml tubes and placed it on ice. ii. Added 2ml Buffer ASL to each stool tube. Used pipet to wash the stool sample from the spoon while transferring the buffer. Vortexed continuously for 1minute
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