Conservation and Preservation check pt Conservation is the sustainable use of natural resources including wildlife‚ water‚ air‚ and earth deposits. Some of these natural resources may be renewable or non-renewable. The conservation of renewable resources like trees involves making sure that we are not using more than what we are able to replace. The conservation of non-renewable resources like fossil fuels involves ensuring that we are only using them when we need to. Preservation is maintaining
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Work and Energy Worksheet Section 1 Work: 1. A person pulls a toboggan for a distance of 35.0m along the snow. The force in the rope (tension) is 94.0N. How much work is done on the sled? Solution: W= Fd W= 94.0N x 35.0m W= 3290 Nm or J 2. The cable of a large crane applies a force of 2.2x10^4N to a demolition ball as it lifts it vertically a distance of 7.6m. a) How much work is done on the ball? b) Is the work positive or negative? Why? Solution:
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Energy Nothing can live without energy. People‚ animals and plants need energy to live and machines need energy to work. Today‚ most of the energy we use still comes from fossil fuels like coal‚ oil and gas‚ which have been formed underground over millions of years. We called these non-renewable forms of energy because they can only be used once. Because of this‚ we need to reduce our use of non-renewable fuel and use more renewable forms of energy like that from the sun‚ wind or geothermal
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disk of radius R = 0.25 m has a string wrapped around it‚ and a m = 3 kg weight is hanging on the string. The system of the weight and disk is released from rest. a) When the 3 kg weight is moving with a speed of 2.2 m/s‚ what is the kinetic energy of the entire system? KETOT = KEwheel+KEweight = (1/2)(I)(w2)+(1/2)(m*v2) =(0.5* v2)(m+1/2M) =0.5*(2.2^2)*(3+(.5*15)) J b) If the system started from rest‚ how far has the weight fallen?
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ENERGY CRISIS IN PAKISTAN By Awaam ENERGY CRISIS IN PAKISTAN By Awaam After thoroughly suffering from the electricity shortage and being humiliated completely‚ reacting in a typical Pakistani way that is to analyse only after a crisis has set in rather than before‚ we decided to look into this matter at depth. To our utter surprise we found that while there were many articles passionately discussing various political issues around this matter‚ there was hardly any objective analysis in
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Presented on Renewable Energy Sources – Policies of India Author- Rucha Korhale BE-Instrumentation Lecturer‚ VPM’s Polytechnic‚ Thane 1 Renewable Energy Sources – Policies of India Abstract:In today’s date‚ India is a large consumer of fossil fuel such as coal‚ crude oil etc. The rapid increase in use of Non renewable energies such as fossil fuel‚ oil‚ natural gas has created problems of demand & supply. Because of which‚ the future of Non renewable energies is becoming uncertain
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global climate warming‚ more and more people focus on building energy efficiency. There is more awareness that CO2 produced by building energy use is the main source of climate warming. Energy-saving buildings become inevitable trend of development‚ the green building also arises in time. Green building can be define as to the construction of the whole life cycle‚ for maximize resource conservation (epa.gov‚ 19/12/2012). It includes energy saving‚ land saving‚ water saving‚ and materials saving‚ to
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Conserve Energy to Save Water – Newsha Ajami This article explores the facts surrounding water consumption tied to everyday activities and how by reducing the energy footprint can help to reach sustainable water-energy equilibrium for future demands. The argument uses statistic and facts that can be easily understood by the average water and energy consumer. Ajami uses relatable examples coupled with facts to present a convincing argument for water and energy conservation. Abigail
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Energy Conversion; Fossil Fuels; Attractive Sources of Energy; Alternative to Fossil Fuels and Their Relative Advantages and Disadvantages Energy Conversion; Fossil Fuels; Attractive Sources of Energy; Alternative to Fossil Fuels and Their Relative Advantages and Disadvantages Introduction Energy comes in different forms and different terms distinguished one form from another. Potential energy is called the energy that possessed by an object due to its position. Kinetic energy is called
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Bridger Teton Conservation versus Preservation 1. Provide a brief summary differentiating conservation and preservation. * Conservation is basically for human use. When people want to use land for oil drilling and build over something that has not been touch. Preservation wants to preserve the land and stop people from using it for other resources. * 2. Do you believe humans may harvest forest resources in an environmentally friendly way‚ or should national forests be left in
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