chapter 1 : Waves GCKL 2011 1.1 U N D E R S T A N D I N G W A V E S What is meant by a wavefront State the direction of propagation of waves in relation to wavefronts What is transverse wave? An imaginary line that joins all the points on the crest of a wave. The direction of propagation of a wave is perpendicular to its wavefront. A transverse wave is a wave in which particles of the medium oscillate in the direction of the propagation of the waves. Water waves and electromagnetic
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SCHOOL OF PHYSICS Physics 1001: Laboratory 3. Standing Waves. Your name/student number:_________________________________ Date:_________ Marker’s signature:______________ Mark:______ Pre-lab Question 1: What is the wavelength of a sound wave of frequency 500 Hz in air (you will need to look up the speed of sound in air)? ________ m. Pre-lab Question 2: If a person inhales helium gas the sound of their voice changes quite dramatically. Why? Pre-lab Question 3: A shower cubicle
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• The Koreans left their homeland because they were being oppressed by the Japanese. • The first wave of Korean immigrant to Hawaii which was an American colony. There experience in Hawaii was better than the other entire immigrant group because at the time Hawaii was still mostly Hawaiian and not Americans. So they were treated fairly and were paid 75-95 cents a day comparing to the Irish‚ who made 1 dollar a week. • Life as an immigrant was the Korean immigrant working for an sugar plantation
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History of the Korean Broadcasting Early Stage(~1926) The first broadcasting of Korea was carried out by the Bureau of Post of the Chosun Trustee Government in 1924. At that time‚ the Bureau of Post acquired receiver and sender for the experimental broadcasting. The first experimental broadcasting was successful in November 1924 with 750 Kh/50W‚ and from 1925 on the Bureau of Post Wireless Laboratory broadcasted 4 times a week. the following year (1926) the Kyungsung Broadcasting Corporation
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Active Water-Wave Absorber Matthew Carney ME236: Control & Optimization of Distributed Parameters Professor Alex Bayen University of California‚ Berkeley 04.30.2007 UC Berkeley‚ Spring 2007 1 Contents • • • • • • Motivation Initial Idea Literature Search Focus Current Work Future Work www.emec.org.uk UC Berkeley‚ Spring 2007 2 Motivation • Significant amounts of energy is stored in the ocean • Large potential for extracting energy from waves • Control is the key to optimizing
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On June 25‚ 1950‚ the Korean War begins when North Korean troops invade South Korea‚ but the report goes largely unnoticed in Seattle. Seattle’s principal role during the three-year conflict will be as a port of embarkation through which personnel and materiel flow to the Far East. News of the invasion by North Korea came on a Sunday. The first indication of the seriousness of the event came the next day when military installations in Puget Sound and in Alaska were placed on full alert. Even after
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Korean Immigration by Jenny Franko Pogi hajimara. In Korean‚ this translates to “don’t give up‚” three words that became their motto during their times of despair. The Koreans have faced many difficulties‚ but managed to overcome them with the aid of hope. As soon as one war would come to an end‚ another one would start. Though Koreans have only recently immigrated in large numbers to the United States‚ due to North Korean oppression‚ they have managed to make a reasonable amount of contributions
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KOREAN MUSIC Traditional Korean music includes both the folk‚ vocal‚ religious and ritual music styles of the Korean people. Korean music‚ along with arts‚ painting‚ and sculpture has been practiced since prehistoric times. Two distinct musical cultures exist in Korea today: traditional music (Gugak) and Western music (yangak). Korean Folk music Korean folk music is varied and complex‚ but all forms maintain a set of rhythms (called Jangdan) and a loosely defined set of melodic modes. Because
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Korean War The first significant Canadian event that I picked was the Korean War. The Korean War was a conflict in Korea between North and South Korea spanning from June 25th 1950 to July 27th 1953‚ the south backed by the United Nations and the north backed by China with some material aid from the Soviets. The war was started due to a political division of Korea due to an agreement with the allied forces after WW II. After that the American administrators proceeded in dividing the Korean Peninsula
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The 5th Wave by Rick Yancey contains a multitude of conflicts. Some of those are minor conflicts and some are major. One major conflict is the obvious humans versus aliens hostility that drives Cassie forward and reminds her of why survival is important; a minor conflict would be Cassie coping with the reality that she murdered somebody for no reason other than her paranoia‚ and a final minor conflict would be the antagonism between Ben and Reznik. Firstly‚ the most conspicuous conflict throughout
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