Macroeconomics I Spring 2012 Homework 5 Instructor: Dang Vu‚ Ph.D. Student name: Student ID: Due date: 04/26/12 Part I: Multiple Choice Questions: (60 points) Choose the best answer (1) among the choices for each question. Please make sure you understand the economics behind all answers rather than just copying your friend’s answers! I will ask you to explain your answer in class. Failure to explain your answer even though you did it right in your homework will lead to deduction of
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A global energy crisis is defined as any great shortfall in the supply of energy to an economy. Energy is oil‚ electricity‚ or other natural resources like coal and natural gas. When the energy supply to an economy becomes endangered or scarce‚ prices raise to record highs. This paper will cover historical events that caused energy crises in the past‚ recent events that affect today’s energy prices‚ and what is being done and proposed to lessen the United State’s dependence on some forms of non-renewable
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issues in today’s world is that of energy sources to power an increasing global demand. Traditionally‚ humans have converted energy from natural resources like coal and natural gas for use. However‚ these sources of energy are both nonrenewable and cause large amounts of pollution. As we progress through the 21st century‚ renewable energy sources like solar and wind energy will see increased use to replace traditional sources. One of these sources‚ wind energy‚ is seeing a rise in development because
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Cal Weller Professor Krueger English 101 26 April 2012 Nuclear Energy Although supporters of solar energy believes its use will be prominent in hope for the progression of technology in the future‚ in reality the erection of nuclear power plants will continue to provide people with energy 24 hours a day rather than only half of the day‚ nuclear energy also creates lasting jobs to help create progressivity in the economy. Research proves that the investment of the new Generation IV reactors
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Degradation : Environment is the first casualty for increase in pollution weather in air or water. The increase in the amount of CO2 in the atmosphere leads to smog which can restrict sunlight from reaching the earth. Thus‚ preventing plants in the process of photosynthesis. Gases like Sulfur dioxide and nitrogen oxide can cause acid rain. Water pollution in terms of Oil spill may lead to death of several wildlife species. 2. Human Health : The decrease in quality of air leads to several respiratory
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The patients weight and the distribution of the weight help determine if the person is considered obese. The most common way for it to be determined whether or not a person is obese is the use of the body mass index. The World Health Organization describes people who have a BMI greater than 30 as obese‚ and those having a BMI greater than 40 as severely obese (WHO‚ 2000). Other definitions of bariatric include overweight by more than 100-200 pounds or body weight greater then 300 pounds. (Hahler
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Energy Resource Plan As the power bill is nearing to be three times as much as it has been‚ one thing on every household’s mind is‚ how are we going to conserve energy? Conserving energy is more than just “saving the planet”. It is preserving earth for future generations‚ your kids‚ your grandkids‚ and your lineage. We need to treat the earth like a precious family heirloom that is nearing its breaking point. There are two categories of energy: renewable and nonrenewable. Renewable energy comes
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Heat energy Temperature – measure of the average KE of the particles in a substance‚ measured in degrees Celsius or degrees Kelvin. Celsius 0⁰C (freezing point of water) to 100⁰C (boiling point of water) Kelvin 0 K (absolute zero‚ particles stop moving theoretically)‚ equivalent to -273.15⁰C. Uses the same scale for increase‚ ie. a 1⁰C increase in temperature equates to a 1K increase in temperature. Heat – amount of energy transferred‚ measured in Joules (J) Kinetic Energy‚ Thermal
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TIDAL ENERGY [pic] *75% of the planet’s surface consits of water. Our water supply transformed a barren planet into a lush green garden of life with a multitude of biodiversity. Water has easily fufilled our every need in many ways. As we near the twentyfirst century‚ a time when public attention is focused on the environment and society is increasing at an ever accelerating rate‚ the energy crisis continues to burden us. Questions of what to do about increasing energy demands and future requirements
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Wind Energy: Energy from Moving Air Abstract This paper contains the description of the process by which the wind is used to generate mechanical power or electricity‚ also describe the prospect and history of wind energy. Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (such as grinding grain or pumping water) or a generator can convert this mechanical power into electricity to power homes‚ businesses‚ schools
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