Activity One: 1. The two major variables that affect the rate of diffusion: a. The composition of the lipid bilayer (eg. more cholesterol‚ less permeability to polar substances) b. The structure of the molecule undergoing diffusion (eg. steric conformation‚ size‚ polarity‚ amount and strength of hydrogen bonding) 2. Urea was not able to diffuse through the 20 MWCO because the pores of the membrane were too small for the urea to pass through. The molecular weight of urea is 60.06 g/mol‚ over
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Checkpoint: Crime Reporting and Rates Response The crime reporting programs is to keep track of the five W’s which is when‚ where‚ and what types of crimes that took place along with who and why and report it. This informs the public on how to react to crime and how the crime fighters fight crime in the community the crime program is used by different law enforcement agencies in order to reduce crime rates‚ the criminal reporting activity is used to see is crime increasing or decreasing in the
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Teletech Case 15 1. How does Teletech Corporation currently use the hurdle rate? Teletech Corporation currently uses a single hurdle rate for both of their divisions. The divisions are Telecommunications Services and Products and Services. They use the hurdle rate based on the cost of capital which is a rough estimate of the Teletech’s WACC. They calculate it at 9.3% based on the cost of capital‚ beta‚ and WACC. 2. Please estimate the segments WACCs for Teletech (see worksheet Exhibit 1)
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initial rate of reaction. I will measure the effect of the enzyme in 5 different concentrations against the controlled variable of the reactant. The enzyme which will be used is different concentrations of potato and the reactant used will be Hydrogen Peroxide. Hydrogen Peroxide which will be the buffer solution is a PH of 7.2. My hypothesis for the experiment is that as the concentration of the enzyme is increased the rate of reaction will be increased‚ producing oxygen at a faster rate. The results
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Effect of Concentration on Reaction Rate Aim: To use a simple reaction between sodium thiosulphate and hydrochloric acid to discover concentration this determines how fast chemical reactions occur. Independent Variable: Concentration of hydrochloric acid (%) Dependent Variable: Time taken for chemical reaction to take place (sec) Hypothesis: My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate of reaction. This is a well informed
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Advanced B Jeff Puccini 3/29/2011 Why Crime Rates Will Drop? This important cause which is some experts think strong economic could let crime rates to drop. However‚ the fact is actually not‚ before 1992‚ American has strong economic. However‚ in fact‚ in these times‚ crime rates were very high. Furthermore‚ according to “Levitt D. Steven and Stephen J. Dubner” (Freakonomics 3). We know homicide fell at a greater rate during the 1990s than any other sort of Crime and number of
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Name: Ashlei Sickles Exercise 5: Cardiovascular Dynamics: Activity 4: Studying the Effect of Blood Pressure on Blood Flow Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Pressure changes in the cardiovascular system primarily result from You correctly answered: b. changes in the force of contraction of the heart. 2. What is the driving force for blood flow? You correctly answered: d. pressure gradient 3. Which of the following is directly
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Science Coursework-Rates of Reactions Introduction Investigating how the concentration of sodium-thiosulphate (STS) and hydrochloric acid (HCL) affects the rate of reaction in the experiment. In addition I am also checking how different variables affect my experiment and also how I can make my test more precise‚ reliable and accurate. Strategy According to my results‚ as the concentration of STS solution increased the rate of reaction of my experiment was increased. Also as the concentration
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Crime Reporting and Rates Response John Smith CJS/200 Crime Reporting and Rates Response The purpose of major crime reporting is to have a system in place that can produce statements on crimes based on statistics recorded by law enforcements agencies. This allows people to see what the crime is looking like in that area and make and adjustment to help resolve the problems. It is very important for a person looking for a new home to look at these reports before purchasing a home in that neighborhood
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EXCHANGE RATES The exchange rate is the price of one country’s currency in terms of another country’s currency Quoted exchange rates can be either direct or indirect‚ Direct: home currency per unit of foreign currency 39 Rupees per US Dollars 80 Rupees per Pound Indirect: foreign currency per unit of home currency 0.0255102 US Dollar per Indian Rupee 0.491594 Pound per Indian Rupee Appreciation of Currency Currency Appreciation means that the given currency
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