WAVE ENERGY Chapter 2: Energy Technology 2.1 Source of Wave Energy Ocean waves are caused by the wind as it blows across the open expanse of water‚ the gravitational pull from the sun and moon‚ and changes in atmospheric pressure‚ earthquakes etc. Waves created by the wind are the most common waves and the waves relevant for most wave energy technology. Wave energy conversion takes advantage of the ocean waves caused primarily by the interaction of winds with the ocean surface. Wave energy is
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Characteristics and Nature of Waves In physics‚ a wave is a disturbance that travels through space and time‚ usually accompanied by the transfer of energy. Waves travel and the wave motion transfers energy from one point to another‚ often with no permanent displacement of the particles of the medium—that is‚ with little or no associated mass transport. They consist‚ instead‚ of oscillations or vibrations around almost fixed locations. For example‚ a cork on rippling water will bob up and down
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Surface Waves: Understanding its movements I. Introduction We treat here an important wave phenomenon‚ the surface wave. It occurs in many physical systems both mechanical and electromagnetic. Mechanical surface waves can exist at the interface between two media with different densities such as the oceans and air. Ordinary sea waves and tsunamis are surface waves. Seismic events can produce both longitudinal and shear waves at the earth’s surface‚ resulting in earthquakes. Electromagnetic surface
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The second chapter of Eyes on the Prize‚ Standing for Justice discusses segregated South mostly Mississippi and the rising blacks murdered. Its primary focus Emmet Till reviewed the story of what led to his killing and the proceedings after his death. The chapter started with the Supreme Court case of Brown V.S. Board of Education‚ which desegregate public schools in America. Following the ruling‚ Mississippians did not welcome the decision‚ and the lack of court orders showed the government’s actual
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Worksheet — Summary of identified misstatements Entity Period ended 335 Page 1 of 2 Objective: To document misstatements identified during the audit and to evaluate: - The effect of identified misstatements on the audit. - The effect of uncorrected misstatements‚ if any‚ on the financial statements. Performance materiality Insignificant misstatements under $ need not be recorded below. Amount of over (under) misstatement in the financial statements Circumstances of occurrence
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ERROR ANALYSIS Errors VS Mistakes Error Error usually means that the person who committed it did something wrong because they thought wrongly and judged incorrectly. It is used for formal situations and is more serious since it is usually a more important problem that occurred due to the misjudgment. It is more technical and formal. Mistake Mistake refers to something that is more common. An example is mistaking salt from sugar‚ it is a common mistake and everyone makes it sometimes
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Vibrations and Waves 1) A wiggle in time is a A) vibration. B) wave. C) both D) neither Answer: A Diff: 1 Topic: Vibrations and Waves 2) A common source of wave motion is a A) wave pattern. B) harmonic object. C) vibrating object. D) region of variable high and low pressure. E) none of these Answer: C Diff: 1 Topic: Vibrations and Waves 3) Like
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Introduction Mistakenly called "tidal wave" the word tsunami is a Japanese word meaning‚ "harbor wave". A tsunami is a series of traveling ocean waves of extremely long length generated by disturbances associated primarily with earthquakes occurring below or near the ocean floor. Tsunamis are primarily the result of a vertical displacement of water and rank high on the scale of natural disasters. Since 1850‚ tsunamis have been responsible for the loss of over 440‚000 lives and billions of dollars
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1.0 What Causes the Tides Tides are periodic rises and falls of large bodies of water. Tides are caused by the gravitational interaction between the earth and the moon. Tides are the cyclic rising and falling of earth’s ocean surface caused by the tidal forces of the moon and the sun acting on the earth . Tides cause changes in the depth of the sea and produce oscillating currents known as tidal streams‚ making prediction of tides important for coastal navigation. The strip of seashore
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2014 Moral Standing on Abortion To say that a person has moral standing is to give consideration to his or her wellbeing. According to Robert M. Veatch’s The Basic of Bioethics‚ moral standing is believed to be “that humans (at least normal humans) have moral standing [as well as] other animals” (27). Moral standing is determined by the physical or mental capacities of self-awareness or rationality. However‚ controversy arises when determining when one actually has full moral standing. Abortion
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