examples of work done=force x distance What is work? Work in physics is the transfer of energy; work is done on an object when an applied force moves it through a distance. The link between work and energy is work done equals energy transferred. The units for the two are also the same (joules). E.g. 500J of work = 500J of kinetic energy. Work is calculated with the formula: work done=force x distance moved For example‚ if a force of 10 newton (F = 10 N) acts along point that travels 2 meters
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How can alternative sources of energy be harnessed effectively? Our modern life today needs energy. World energy demand is more than available energy sources. Fossil fuels are running out every time it is used. So we need to provide new energy that can be harnessed instead of fossil fuel for today and tomorrow. Alternative energy This problem can be solved by LCOE‚ national grid‚ and new technologies like Crystal Solar and optimizing battery storage. Fossil fuel is non-renewable energy that will
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This rings true when talking about energy drinks. These products promise to provide heightened awareness‚ more energy‚ more endurance some even reference to the consumer you will have wings. So when consuming these products what are you really drinking? Do they provide the energy boost they promise? Are they harmful? Should the FDA do more investigating into the safety of these so-called energy drinks? These are questions I had going into this as a consumer of energy drinks myself‚ I was interested
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Discuss and compare the relevance to the three energy systems for the sport of your choice‚ explain the details of each system? The body has only one unsuitable form of energy‚ this is known as ATP. ATP releases energy when broken down and is essential to the flow of energy to living cells. It can be re synthesized through a possible three energy systems; ATP-PC system‚ the glycolytic Lactic Acid system and the aerobic system. My chosen sport is trampolining the main performance in trampolining
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The Truth behind Energy Drinks (The Physiological Effects of Energy Drinks) General Speech Purpose: To inform. Specific Speech Purpose: To inform my SC 10 classmates and instructor about the physiological effects of energy drinks on October 1‚ 2013‚ from 11:30 to 1 pm in CAC 203. INTRODUCTION I. Good day fellow people. II. Who among here drink energy drinks frequently? III. Let me tell you how our body respond to energy drinks. BODY I. Energy drinks have caffeine a. Caffeine causes
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Romar M. Cabinta EXERCISES 15 WORK‚ ENERGY‚ AND POWER A. CONCEPTUAL QUESTIONS 1. Is work done when you move a book from the top of the desk to the floor? Why? Yes. It is because the displacement of the book from the top of the desk to the floor and the force that is applied to the book is parallel with one another. 2. State the law of Conservation of Mechanical Energy in two ways? The law of conservation of energy states that energy may neither be created nor destroyed.
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Cell Energy Worksheet Answer the following questions: Cellular respiration: • What is cellular respiration and what are its three stages? The main function of cellular respiration is to generate ATP for cellular work; it is the process of harvesting chemical energy from organic fuel and converting it to ATP energy. The three stages of cell respiration include: Glycolysis‚ Citric Acid Cycle‚ and Electron Transport(Simon‚ Reece‚ & Dickery‚ 2010). • What is the role of glycolysis
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Types of Energy: Energy is the ability to do work and there are many types of energy. Mechanical Energy is the energy of motion that does the work like the wind turns a windmill. In physics‚ mechanical energy is the sum of potential energy and kinetic energy present in the components of a mechanical system. It is the energy associated with the motion and position of an object. The law of conservation of energy states that in an isolated system that is only subject to conservative forces‚ like
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How does my wind generator work? Every wind generator‚ whether they produce enough energy to power a city or to power a small radio‚ works on these same basic principles... 1. The wind blows 2. The generator’s vane (tail) causes it to turn into the wind 3. Blades attached to an alternator/generator experience the force of lift and begin to spin 4. The spinning creates electricity for us to use directly or to charge batteries Sounds pretty simple eh? Well‚ then how the heck do I build one
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is their difference in momentum? What is their difference in kinetic energy? 2. A 12 g bullet is fired horizontally into a 96 g wooden block initially at rest on a horizontal surface. After impact‚ the block slides 7.5 m before coming to rest. If the coefficient of kinetic friction between block and surface is 0.60‚ what was the speed of the bullet immediately before impact? You have to use the conservation of the total energy of the system to do this problem: Initially‚ you have‚ in the total
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