. How Do Diesel Engines Work? The basic difference between a diesel engine and a gasoline engine is that in a diesel engine‚ the fuel is sprayed into the combustion chambers through fuel injector nozzles just when the air in each chamber has been placed under such great pressure that it’s hot enough to ignite the fuel spontaneously. Following is a step-by-step view of what happens when you start up a diesel-powered vehicle. 1. You turn the key in the ignition. Then you wait until the engine
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Quiz. Evaluate the following problems. Show your solution and encircle your final answer. 1. In a 25-kVA‚ 2000/200 V‚ single phase transformer‚ the iron and full load copper losses are 350 W and 400 W respectively. Calculate the efficiency at unity power factor on a) full load‚ b) half full-load. 2. If P1 and P2 be the iron and copper losses of the transformer on full load‚ find the ratio of p1 and P2 such tat maximum efficiency occurs at 75% full load. 3. A 5-kVA‚ 2300/230 V‚ 50 Hz transformer
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There are about 3 million car-related injuries a year‚ 2 million permanent injuries and 40‚000 deaths in the U.S. each year. The Department of Transportation’s statistics indicate that accidents are generally related to irresponsible driving behavior. About 40% of fatalities are related to drinking and driving‚ 30% to speeding and about 33% from a car going off the road. Seat belt use is only at about 68% nationally‚ despite it being a highly cost-effective means to prevent fatalities and serious
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Social Problem of the Industrial Age How was the Social Problem addressed during the Industrial Age (social movement‚ law‚ etc.)? Was the Social Problem addressed successfully? Be sure to support your opinion with evidence from the lesson or your research. Is the Social Problem still an issue today? How? Child Labor Social Reformers like Mother Jones addressed the fact of Child Labor This Social Problem was addressed Successfully‚ through groups and speakers‚ they talked to the public‚ addressing
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We feel money and power can bring happiness and solve problems but they are not definite causes of those desired states .If that were so‚it would follow that those who have wealth would always be happy and those who do not would always suffer. Money and power facilitate‚but it is clear that they are not the primary causes of happiness and solving our problems.It is justified for us to make material and financial development for building our nation but inner development is also important.What will
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Name: Period: Date: Electrostatics: Electric charges and Coulomb’s Law problems I I. Answer the following problems. 1. Calculate the electric force between two point charges of 4.00 µC and 3.00 µC when they are 2.00 cm apart. 2. Two points of equal charge produce an electric force on each other of 3.40x10 -2 N when placed 0.100 m apart. What is the charge on each point? 3. How far apart are two point charges of 2.0x10-6 C and 4.0x10-6 C if they produce an electric force of 0.56
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to be done about it. This high pregnancy rate in teenagers is in fact a major problem‚ because teenagers are not responsible enough to raise a baby. There are many possible solutions to prevent teenage pregnancy like discouraging early dating‚ abstinence‚ and using birth control and condoms. Although there are all these possible solutions the pregnancy rate is still very high. So we need to evaluate the possible solutions and pick the best one to grow on to help lower the teenage pregnancy rate. What
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Over fishing is a serious problem that the world faces today. With sea food consumption at an all time high and the oceans resources being fished almost to extinction. We have to look towards the future of maintaining our oceans resources. "Only 10 percent of all large fish-both open ocean species including tuna‚ swordfish‚ marlin and the large ground fish such as cod‚ halibut‚ skates and flounder-are left in the sea"(National Geographic‚ pg. 1) To help maintain and preserve our oceans resources
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The Problems and Solutions of Overcrowding in Modern Cities Now In the world there are many cities which are facing overcrowding‚ such as London‚ Tokyo‚ New York‚ Paris‚ Beijing‚ Singapore‚ Manila and Rio. But‚ few people know the exact meaning of the term “overcrowding”. There is a popular definition which is widely accepted by scholars: “an outgrowth of excessive size is overcrowding‚ meaning too many people occupying little space.” (Brunn et al‚ 1983‚ p37). Overcrowding causes huge problems
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Introduction Solutions Software Company is a leading international software company. It is Australian division which is located in Sydney. Jane Cordon is new General Manger in Solutions Software Company. However‚ due to strange work environment and new work requirements‚ there exist many problems in Solutions Software Company. These problems include leadership skill problems‚ conflict of communication or inappropriate leadership style. If some problems don’t gain effective solutions‚ conflict between
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