Density‚ Mass and Volume Density is the measure of how tightly the particles of a substance are packed into a given volume. L=1cm B=1cm H=1cm Aluminium=1cm3 Volume=lbh Volume= 1cm*1cm*1cm Volume= 1cm3 Iron 1cm3 1cm3 of iron would be however than 1 cm of aluminium. The density of the iron cube would be greater than the density of the aluminium cube. One explanation from that is that the particles/molecules in the iron cube are more tightly
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Chapter 21: Measuring GDP and Economic Growth Problem: 1 a. Aggregate expenditure: Aggregate expenditure is the sum of consumption expenditure‚ investment‚ government expenditure‚ and net exports i.e. AE = C + I + G + (X – M) In the figure‚ B is consumption expenditure‚ D is investment‚ C is government expenditure‚ and E is net exports. Therefore Aggregate Expenditure = $7‚064 billion + $1‚624 billion + $1‚840 billion + (−$330 billion) which is $10‚198 billion. b. Aggregate income:
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Measuring inequality: Using the Lorenz Curve and Gini Coefficient 1. Introduction Almost thirty years ago‚ the author of this brief attended a lecture addressing the economics of inequality. At the start‚ the class was invited to imagine the implications of individual wealth being reflected in our personal height. Assume that by government decree‚ everyone has to march past a fixed point over the period of one hour‚ starting with the smallest people and ending with the largest. The parade
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In the pasted years population has been growing rapidly in MEDC’s and LEDC’s‚ by looking at the crude birth rate and crude death rate we are able to see how the population grows in certain countries. Looking at how high the rates are in a LEDC country and a MEDC country‚ you are able to conclude that you can relate specific factors to different areas of the world. When looking at the population growth of a LEDC there are common factors that appear when looking at the death and birth rates. For
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The Speed of Toy Cars & Measuring Acceleration Introduction: The Speed of Toy Cars & Measuring Acceleration was investigated by using a ticker timer and changing the angle of the ramp. Changing the angle of the ramp affects the speed and acceleration of the trolley. The speed and acceleration of the trolley was determined by using the ticker timer. Aim: The aim of the practical is to investigate the motion and acceleration of a trolley by using a ticker timer and rolling the trolley down a ramp
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Density of Metals Lab 1. Purpose The purpose of this lab was answered in 4 questions‚ and their answers are here shown. The density of the metals we used were 5g/cm3. The density of a metal piece does not depend on its size‚ it depends on the total mass and total volume. The most accurate way of determining density is dividing mass by volume. You can’t identify metals by their density. It can help you narrow the options down‚ but you can’t identify a metal by using only its density. 2. Question
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Measuring Crime CJA/204 October 9‚ 2013 Richard Pacheco Measuring Crime There are two different instruments used in reporting crime. There are also major crimes reporting program used in the United States. These major crime reporting programs do have a purpose and does give statistical information on crime in the United States. There are a difference between crime rates‚ arrest rates‚ clearance rates‚ and recidivism rates. The information reported about crime rates can be misleading and give
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Measuring Resistance Experiment Evaluation M U S (12037486) Table of Contents Title Page 1 Introduction 3 Research Questions 4 Questions 4 Answers 4 Experiment 6 Introduction This experiment is carried out to show how the Research Questions Questions 1) Provide the units used to measure the following quantities‚ electric current‚ inductance‚ frequency‚ power and energy (work). 2) What is the difference between AC and DC voltages? Give examples. 3)
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Physics 01L Density Abstract This experiment was conducted in order to determine the density of the Aluminum metal samples provided in the lab. Specific tools such as the vernier caliper and balance scale were used to measure and record the values found. Given that density is a measurement of mass over volume‚ both of these quantities would have to be determined experimentally‚ prior to proceeding with the calculation of the density‚ for each of the six subjects
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Abstract In Measuring and Understanding Density‚ several experiments were performed to find density of regularly shaped objects‚ irregularly shaped objects‚ liquids and gasses. An additional experiment was done to find the specific gravity of a sampling of liquids. The purpose of the experiment was to provide a better understanding of density and to be able to extrapolate unknowns based upon these calculations. The experiments yielded data in keeping with Kinetic-molecular theory in regards to the
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