1 ELECTRIC MOTORS I. Introduction Electric motors are considered to be important mechanical devices. They usually convert the electrical energy coming from the mechanical device into its kinetic energy to make it work (Petingco and Resurreccion‚ 2011). In this exercise‚ the students were tasked to use an example of an electric motor‚ identify its parts‚ and make it work. All electrical motors are equipped with stator and rotor. Stator is known as the stationary part of an electric motor
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The Challenge of Designing Electric Cars Dr. Tobias Giebel Tobias Giebel 博士 Sahnghai EXPO‚ May 2010 Contents 内容 • Introduction Group Research and Volkswagen Research Lab China (VRC) 大众汽车集团研发中心概况和大众汽车中国研究实验室(VRC)介绍 • Volkswagens Strategy for Powertrains and Fuel 大众汽车的动力总成及燃料战略 • Blue Motion Technologies 蓝驱技术 • Hybrid Technologies 混合动力技术 • Electrotraction 电驱动技术 • Hydrogen Technologies 氢技术 • Modular Toolbox 模块化设计矩阵 • Conclusion 结论 Dr. Tobias Giebel Tobias Giebel 博士 The Volkswagen Portfolio
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the left or right‚ if other factors‚ other from price‚ change. Factors Affecting Supply Of a Product . * Expectation of future price * When producers expect higher prices in the future commodities‚ the tendency is to keep their goods and release them when the price rises. * Change in the price of related goods * Changes in the price of goods have a significant effect in the supply of such goods. * Government subsidies * Subsidies or the financial
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uniform E + + + + + + electric U = Fy = q0Ey a F=Eq0 E Wab = Fd = q0Ed d b ya yb ‒ ‒ ‒ ‒ ‒ ‒ = ‒ ΔU = ‒ (Ub ‒ Ua) F does positive work‚ U decreases positive charge moving in the opposite direction of uniform E + + + + + + electric U = Fy = q0Ey b Wab = Fd = q0Ed d E yb a ya F=Eq0 ‒ ‒ ‒ ‒ = ‒ ΔU = ‒ (Ub ‒ Ua) ‒ ‒ F does negative work‚ U increases negative charge moving in the direction of uniform E + + + + + + electric F=Eq0 U = Fy = q0Ey a Wab
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is to use the electric motor instead of gasoline one. An electric car is a car that powered by an electric motor rather than a regular gasoline engine. There are several major differences between gasoline and electric cars. First of all‚ “the electric motor will replace the gasoline engine” (“How Electric”‚ 2004). Secondly‚ “the electric motor is powered by a controller” (“How Electric”‚ 2004). Thirdly‚ “the controller gets power from the rechargeable batteries” (“How Electric”‚ 2004). In
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Lincoln Proposed Resolution: 1.1 International Expansion Team • The root of Lincoln Electric’s troubles began with the quick expansionist mindset of George Willis. The main trouble was the speed of the expansion. Lincoln Electric should have formed international expansion team focusing on the key areas that initiates a market analysis to spearhead strategic directions of developing good governance framework and promoting inclusive growth. They are also responsible to evaluate alternative mode
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help the environment and also save lots of money. Electric cars are something everyone should invest in because it saves a lot of money. Many people probably think that it will cost a lot of money because of the installation but in the long run you would actually save more than gasoline does. People can also make it convenient to have a charger installed in their homes so that they don’t have to pay or travel far just to recharge. Using electric cars will keep our environment from being polluted
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point charge q2 = 5.1 μC is located along the x-axis at a distance x2 = 9.3 cm from q1. 1) What is F12‚x‚ the value of the x-component of the force that q1 exerts on q2? -18.57 N For all of these problems we want to make use of the standard electric force equation: ̂ So for this problem with K=9*109 Nm2/C2‚ Q1=-3.5μC‚ Q2=5.1 μC‚ and r=9.3 cm we get F=-18.57 N. It’s important to realize that getting a negative force value means the charges attract. The direction of that attraction is determined
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The time from 1609-1610 is called the starving time in Jamestown. In Jamestown‚ during this time period‚ there was little food‚ meager leadership‚ and the native people were killing as many of the settlers that they could get their hands on. King James I was aware of all the problems that the settlement was facing and so he sent nine ships to the settlement. The nine ships were carrying food and more settlers‚ due to the amount of settlers that were there dying. But due to bad weather‚ many of the
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Shawn Fiedler Westover Electric Problem MGMT 486 After organizing and looking at the Westover Electric data‚ I found there to be some trends in the data as for causes for the problems when looking at charts I made. After adding up the total defects in the month and organizing them by type there were three specific defects that accounted for 80.97% of the total defects. Going from most to least number of defects by cause‚ 31.17% happened from abraded wire‚ 25.51% from broken leads‚ 24.29% from
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