Doppler effect The Doppler effect‚ named after Christian Doppler‚ is the change in frequency and wavelength of a wave as perceived by an observer moving relative to the source of the waves. For waves that propagate in a wave medium‚ such as sound waves‚ the velocity of the observer and of the source are relative to the medium in which the waves are transmitted. The total Doppler effect may therefore result from motion of the source‚ motion of the observer‚ or motion of the medium. Each of these
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Doppler Effect Objectives * Measure the detector frequency for waves emitted from a slowly moving source as that source is approaching the detector. (Exploration 1) * Calculate the detector frequency for waves emitted from a slowly moving source as that source is moving away from the detector. (Exploration 2) * Sketch the wave-front patterns for wave sources with various source speeds. (Exploration 3) Description of Activity In this activity‚ you will study waves that travel from
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Effects and reasons of hyperinflation During 1923 to 1929‚ Germany suffered from a serious economic problem----HYPERINFLATION. There are several reasons of the hyperinflation: *The general strike which was led by the Weimar Republic to against The Kapp Putsch made the amount of the goods is much less than the amount of currency. So they have to produce more money to chasing the goods. *The weak economic of Germany since it was just suffered from the First World War. *The Weimar Republic have
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time and child obesity’ article by the NHS Knowledge Service). From this it is well understood that the lower value of BMI among children is not because of the limitation to computer games and TV. Families with low socioeconomic status tend to consume less foods in their daily life as their expenditure are low. The researchers note that although the change in television viewing was related to change in energy absorption‚ it was not allied to any change in physical activity. Dr Leonard Epstein and colleagues
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increasing in marijuana over the past years. This means that for new users exposure to higher THC levels gives them a greater chance of harmful reactions. The chemical THC causes the high or intoxicated feeling‚ which make it an official drug; by the Is Marijuana Addictive website. Intoxication from the drug may be addictive and cause changes in the
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Cornelia Nistor‚ Positive and negative effects of globalization / Annals of University of Bucharest‚ Economic and Administrative Series‚ Nr. 1 (2007) 152-163 Positive and negative effects of globalization Assoc. Prof. PhD Cornelia Nistor Faculty of Administration and Business University of Bucharest Abstract Although globalization cannot ensure worldwide stability and economical equilibrium‚ or full environmental protection‚ its positive effects mainly regarding the trading development and the
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Effects of Music Music is a very powerful medium and in some societies there have been attempts to control its use. It is powerful at the level of the social group because it facilitates communication which goes beyond words‚ enables meanings to be shared‚ and promotes the development and maintenance of individual‚ group‚ cultural and national identities. It is powerful at the individual level because it can induce multiple responses – physiological‚ movement‚ mood‚ emotional‚ cognitive and behavioral
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THE EFFECTS OF PORNOGRAPHY ON INDIVIDUALS‚ MARRIAGE‚ FAMILY AND COMMUNITY Pat Fagan Pornography is a major threat to marriages‚ the family‚ and the society at large. It is not a private choice without public consequence. Pornography alters both sexual attitudes and behavior‚ undermining marriage‚ which in turn‚ undermines the stability of the entire community. THE FAMILY AND PORNOGRAPHY • Married men who are involved in pornography feel less satisfied with their conjugal relations and less
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Health Globalization has both positive and negative effects about one of the major concerns‚ health. The health care is primarily affected by globalization is through the increasing and worsening of internationalization of various health risks. However‚ if you will have to define the terms and other dimensions of the health risks such as; Technological‚ economic‚ social‚ political and cultural as well as scientific aspects. The linkages between health care and globalization are quite complex.
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The Bullwhip Effect in Supply Chains Hau L. Lee • V. Padmanabhan • Seungjin Whang Distorted information from one end of a supply chain to the other can lead to tremendous inefficiencies: excessive inventory investment‚ poor customer service‚ lost revenues‚ mis^ided capacity plans‚ ineffective transportation‚ and missed production schedides. How do exaggerated order swings occur? What can companies do to mitigate them? ot long ago‚ logistics executives at Procter & Camble (P&C) examined the order
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