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 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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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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31‚ 19.37‚ 19.39‚ 19.41‚ 19.43‚ 19.47‚ 19.51‚ 19.53a‚ 19.55‚ 19.61‚ 19.73‚ 19.75‚ 19.77 Recall from Chapter 5 - 1st Law of Thermodynamics o Energy is neither ____________________________________________. o Energy of the universe is constant. o Enthalpy Change ▪ Heat energy transferred at _____________________________________ ▪ Negative value = ▪ Positive value = Spontaneous Processes -
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title: conservation of mechanical energy Section: 8 Name: Ahmed Atari University ID: 201103848 Instructor: Ahmed Zainelabdin Submission date: May 1‚ 2014 Objective: the purpose of this lab is to investigate the law of conservation of energy. This can be achieved by measuring both potential and kinetic energy through the experiment conducted. Back ground: Kinetic energy is said to be the energy of motion. Kinetic energy can
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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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LESS ENERGY Year 9 In the UK our homes contribute significantly to the carbon dioxide in the atmosphere. Becoming more energy efficient will help to reduce the amount of carbon emissions we create and the amount of energy we need to power our homes. If every home reduced their energy consumption by 20% the UK would meet the 2020 targets set by the European Union. However due to out-dated methods of construction in older properties it is not always a easy task to become more energy efficient
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