QUESTION( Conservation of Energy) 1. Missy Diwater‚ the former platform diver for the Ringling Brother’s Circus had a kinetic energy of 15 000 J just prior to hitting the bucket of water. If Missy’s mass is 50 kg‚ then what is her speed? Solution: According to energy conservation‚ the kinetic energy at the bottom of the dive (15‚000J) is equal to her gravitational potential energy before the dive. We can use this fact to find her dive height: PE = mgh h = PE/mg = 15‚000J / (50kg)(9.81m/s²)
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Energy audit An energy audit is an inspection‚ survey and analysis of energy flows in a building‚ process or system with the objective of understanding the energy dynamics of the system under study. Typically an energy audit is conducted to seek opportunities to reduce the amount of energy input into the system without negatively affecting the output(s). When the object of study is an occupied building then reducing energy consumption while maintaining or improving human comfort‚ health and safety
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Lab: Conservation of Energy Purpose: To determine and prove that the total energy will remain the same Materials: ● probe ● meter stick ● 2 by 4 wooden block ● shelf (ramp) ● binders (for elevation) Procedure: 1. determine the mass of the block 2. take your ramp and put one side on the table and the other side on the elevated stack of binders 3. set probe at the top of the ramp 4. set the probe to record position and velocity 5. measure the height of the ramp 6. slid
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What is "energy"? Where does it come from? And how do we pay for it? When you learn the answers to these questions‚ you can also learn how to live more efficiently in your home. In this article‚ we ’ll discuss how to be smart about how you use energy‚ how to know when to turn electrical power on and off‚ and how to use natural gas‚ propane‚ and fuel oil in the most effective way. Basic Concepts of Energy Efficiency You can make a lot of progress toward improving the energy efficiency in your
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Energy is one of the world’s greatest inventions of all time. We use energy on a daily basis for just about everything. Our way of life is based upon energy and how we use it. We use large amounts of energy for transportation and electricity. Due to the limited supply of resources available to us we need to make sure that we conserve them wisely so that these resources will be around for future generations. It is imperative that consumer start to take responsibility for their actions. There
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Using your text and the article‚ Family Involvement in Early Childhood Education‚ give four examples of the benefits and challenges of a Family-Centered Approach. Each of the four examples should include the child‚ the family‚ and the teacher’s perspective. Benefits: The child: One huge benefit is emotional security. Some children entering an early childhood program have separation anxiety‚ they feel stressed and overwhelmed when their parents leave them at school. If the child’s parent(s)
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CheckPoint: Energy Resource Challenges Catherine Forbes SCI/275 August 31‚ 2012 University of Phoenix CheckPoint: Energy Resource Challenges “Nonrenewable energy resources include coal‚ oil‚ and natural gas.” However‚ they are nonrenewable‚ meaning that these resources cannot be regenerated. There are alternatives‚ though‚ that can be used in their stead; some of which are wind turbines‚ solar energy‚ ethanol‚ hydropower‚ geothermal energy‚ biomass energy‚ and ocean energy. The video discussed
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Energy Conservation 1 Energy conservation is the reduction or elimination of unnecessary energy use and waste. This practice may result in increase human comfort‚ personal security‚ national security‚ environmental value‚ and financial capital. There are many activities that people can do to conserve energy and help not only themselves‚ but also the environment and everyone around them. Conserving energy is important because most of our current energy sources are not renewable. When using
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Energy Conservation Reflexive diary: Individual essay Before completing this reflexive diary I would have considered myself fairly energy conscious. I would have still said I’m wasteful but I thought I was more aware than others. I thought I knew more about the environmental consequences of wasting energy than I did. Completing this diary really opened my eyes to the amount we all waste energy unnecessarily. Almost all of us don’t have a clue how much energy we consume. I had never thought about
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The Benefits of Solar Energy Melissa Strayer University English 215 July 20‚ 2012 The Benefits of Solar Energy Solar energy represents the future of a clean earth in days to come; it also represents the clean air that our children and their children will breathe. We constantly have to worry about pollutants in our air from all of the many harmful chemicals being thrown into the air by fossil fuels; we never stop to think about how this will affect our children‚ and it’s time that we start
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