Population change Saturday‚ April 13‚ 2013 5:18 PM Index Def. Meaning LEDC example MEDC example Crude Birth Rate (CBR) No. of live birth/1000 peo. in pop./year High CBR/TFR: Parents want children: - For labors → Contribute to family income Botswana France: Total Fertility Rate (TFR) Avg. no. of children that Low CBR/TFR: would be born to a - Children are costly woman during her - Good public pension scheme & health services → lifetime No need
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Data: quantitative The data below is the raw data collected during the lab to test the photosynthetic rate of five different .75% colored bicarbonate solutions. Time taken for three spinach leaf disks to rise to the top of .75% bicarbonate solution (measured in minutes) Uncertainty +/- 10 seconds Uncertainty +/- 10 seconds Qualitative: This data is a record of the physical reactions or visual observations during the lab * Some of the leaf disks are not cut properly * Blue
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Written Task The downfall. The cold pouring rain had finally stopped. The man who several years ago were used to be Winston Smith was walking down the narrow street closely to his apartment in Victory Mansions. It was the year 1989‚ or at least he thought so. It has been raining for days‚ or even weeks‚ it doesn’t matter. The noise of bombs turning buildings into dust was very often in that week‚ and they were dangerously close to the part of the city where most of the party members were relocated
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LOG INVESTIGATION 1. INTRODUCTION The following assessment aims to investigate logarithms and several different expressions. The following sequences (from now on referred to as P roblem1 ) is in the form of an = logmn mk ‚ where n represents the term number and an represents the given answer. 1. a1 = log2 8‚ a2 = log4 8‚ a3 = log8 8‚ a4 = log16 8‚ a5 = log32 8‚ ... 2. a1 = log3 81‚ a2 = log9 81‚ a3 = log27 81‚ a4 = log81 81‚ ... 3. a1 = log5 25‚ a2 = log25 25‚ a3 = log125 25‚ a4 = log625
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Math Studies: Units Project Talha Mirza 1A Gilmartin Dear noble tribe leaders of T-Island‚ I have created a brand-new system of units for us to use in our daily lives called the T-Dog system. You will find this system to be quite useful‚ as it includes six unique units which measure temperature‚ length‚ time‚ weight/mass‚ volume/displacement‚ and currency. By utilizing these units‚ life will be made easier for us. Moreover‚ if it is ever decided to switch to other well-known systems‚ it is
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International Business Strategy Case study ----- Vodafone Group Members: Tao Gu 1461379 Jia Guo 1463305 Yi-Chieh Li 1490606 Chenya Lian 1474013 Yang Li 1429174 Date: 28/04/2015 INTRODUCTION (Yang Li) • • • • • 1. Identify strategic issues--MBV‚ RBV‚ OBV‚ Corporate‚ International (Yang Li ) 2. Identify key strategic issues—Key issue 1. (Chenya Lian) & Key issue 2. (Jia Gu o) 3. Recommendation—1. (Chenya Lian) & 2. (Jia Guo) 4. Action plan—Plan1. (Yi-Chien Li) & Plan2. (Tao Gu) 5. Conclusion(Tao
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6.1.1 If the reaction produces heat (increases the temperature of the surroundings) then it’s exothermic. If it decreases the temp (i.e. absorbs heat) then it’s endothermic. Also‚ the yield of an equilibrium reaction which is exothermic will be increased if it occurs at low temps‚ and so for endothermic reactions at high temperatures. 6.1.2 Exothermic : A reaction which produces heat. Endothermic : A reaction which absorbs heat. Enthalpy of reaction : The change in internal energy (H) through
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IB CHEMISTRY Unit 6: KINETICS STANDARD LEVEL: Number Objective Rates of Reaction Define the term rate of reaction. Describe suitable experimental procedures for measuring rates of reactions. Analyze data from rate experiments. Students should be familiar with graphs of changes in concentration‚ volume and mass against time. Collision Theory Describe the kinetic theory in terms of the movement of particles whose average energy is proportional to the temperature in Kelvins. Define the term activation
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the experiment is due to the oxygen gas released from the tested substance. Because of this‚ any cell that uses oxygen or lives in the presence of oxygen must have a way to get rid of the peroxide. One of these ways is to make catalase. Research Question: “In what manner will the product of the enzymatic reaction be released from the different substances placed with the test tube?” “Different food items will produce different amount of bubbles when tested with the hydrogen peroxide” Variables:
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Question : What’s the probability that an individual‚ selected at random‚ will score below the mean on any normally distributed characteristic? Student Answer: p = 0 p = .1 p = .5 p = 1.0 Instructor Explanation: Found in section 3.1‚ A Primer in Probability. Points Received: 1 of 1 Comments: Question 2. Question : Turning raw scores into z scores does not ____________. Student Answer: allow for scores from different tests to be compared directly create a
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