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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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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Turkey’s energy dependence and energy security Introduction Today‚ energy has important place in human life and international relations. With the industrial revolution‚ human beings have become more dependent on energy. The importance of oil has increased with the opening of commercial oil wells. Because‚ oil was advantageous than from coal. Economic developments has increased people’s dependence on oil each passing day more and more. Use oil for vehicles‚ military equipment‚ defense vehicles
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KINETIC ENERGY Objects have energy because of their motion; this energy is called kinetic energy. Kinetic energy of the objects having mass m and velocity v can be calculated with the formula given below; K=1/2mv² Kinetic energy is a scalar quantity; it does not have a direction. Unlike velocity‚ acceleration‚ force‚ and momentum‚ the kinetic energy of an object is completely described by magnitude alone. Like work and potential energy‚ the standard metric unit of measurement for kinetic energy is
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Calculating Efficiency. Efficiency (%) = Useful Energy Out x 100 Total Energy In Questions 1) A light bulb takes in 30J of energy per second. It transfers 3J as useful light energy and 27J as heat energy. Calculate the efficiency. 2) A kettle takes in 2000J of energy per second. It transfers 1500J as useful heat energy and 500J is wasted as sound energy. Calculate the efficiency of the kettle. Remember: In the exam they may not
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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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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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Acquisition of Motorola by Google On August 15‚ Google announced an agreement to acquire Motorola Mobility‚ based in Libertyville‚ Illinois‚ for $40 per share. Both companies’ boards of directors have approved the deal. Benefits of the deal Google and Motorola Mobility together will accelerate innovation and choice in mobile computing. Consumers will get better phones at lower prices. Motorola Mobility’s patent portfolio will help protect the Android ecosystem. Android‚ which is open-source
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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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Running Head: Energy Conversion Energy Conversion Marlon Walker Professor Abdul Kahn SCI 110: Integrated Science October 21‚ 2011 Abstract Energy conversion has been a topic of debate and research for many years. Scientists conduct experiments in hopes of finding an alternative to relying on burning fossil fuels for electricity. While companies who believe their alternative is the best choice‚ debate over whose source is the “greenest”. Whether it be biomass‚ hydroelectricity‚ solar
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