the First and Second Laws of Thermodynamics. Include entropy in your explanation. The first law states that energy can neither be created nor destroyed it can only change from one type of energy to another‚ and the total amount of energy remains the same. The second law states that energy conversion goes from high energy forms to low energy forms. This is called disorder and entropy is a measure of disorder in a system. Essentially entropy is increasing as energy flows from high energy to low
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WAVES & SOUND Refraction waves bending when passing through different materials/medium Doppler Effect the effect of a change in frequency‚ resulting from relative motion between source of wave & observer Sound Intensity loudness‚ rate at which energy flows through an area perpendicular to direction of wave Beats 2 waves of similar frequency causing interference heard as beats Reflection Occurs when particles bounce off one another in opposite direction Decibel
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In physics‚ elasticity is the tendency of solid materials to return to their original shape after being deformed. Solid objects will deform when forces are applied on them. If the material is elastic‚ the object will return to its initial shape and size when these forces are removed. The physical reasons for elastic behavior can be quite different for different materials. In metals‚ the atomic lattice changes size and shape when forces are applied (energy is added to the system). When forces are
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The Effect of Solute Concentration on the Mass of Apples Introduction Background: This lab involves the testing and measuring of water potential. Water potential (ψ) is the tendency of water to diffuse from one region to another. It measures the free energy available in water to do work. Pure water has a water potential of 0 (kpa--unit?). Water will move from an area of higher water potential to an area of lower water potential. Several factors‚ including temperature‚ pressure (ψp) and solute concentration
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Introduction The article’s main social concern is to examine prevention and intervention methods and their subsequent impact on family poverty and children’s mental‚ emotional and behavioral health. As a conceptual framework‚ Yoshikawa‚ Aber and Beardslee (2012)‚ tackle four aspects of poverty‚ the family and child as the main subjects or selection factors‚ the multidimensional nature of poverty‚ the mechanisms through which poverty effects children on an individual‚ relational and institutional
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opinion‚ having the power Haber has over Orr‚ is too great of a responsibility for one individual alone. I disagree with Haber’s view on how change through Orr’s effective dreaming is an advantage to humanity because natural order does not lead to entropy (a doctrine of inevitable social decline and degeneration). George put it best
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Types of Energy: Energy is the ability to do work and there are many types of energy. Mechanical Energy is the energy of motion that does the work like the wind turns a windmill. In physics‚ mechanical energy is the sum of potential energy and kinetic energy present in the components of a mechanical system. It is the energy associated with the motion and position of an object. The law of conservation of energy states that in an isolated system that is only subject to conservative forces‚ like
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JOURNAL OF INFORMATION SCIENCE AND ENGINEERING 17‚ 713-727 (2001) A Fast Algorithm for Multilevel Thresholding PING-SUNG LIAO‚ TSE-SHENG CHEN* AND PAU-CHOO CHUNG+ Department of Electrical Engineering ChengShiu Institute of Technology Kaohsiung‚ 833 Taiwan * Department of Engineering Science National Cheng Kung University Tainan‚ 701 Taiwan + Department of Electrical Engineering National Cheng Kung University Tainan‚ 701 Taiwan Otsu reference proposed a criterion for maximizing the between-class
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potential characteristics on it. This gradient is of interest as an indicator of the state of the cell through parameters such as the Nernst potential. In terms of membrane transport the gradient is of interest as it contributes to increased system entropy in the co-transport of substances against their gradient. One of the most important pumps in animal cells is the sodium potassium pump‚ that operates through the following mechanism:[7] binding of three Na+ ions to their active sites on the pump
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Gabriela Rios-Martinez March 1‚ 2014 BIO 141 Exam 1 Study Questions Chapter 1: Biology and the Tree of Life (#1 – 4) 1. What is the difference between a hypothesis and a scientific Theory? Between a hypothesis and a prediction? What kinds of hypotheses are useful for scientific investigations that try to explain the natural world‚ and which are not? Give one or more examples of hypotheses that are and are not scientifically useful. (a.) A scientific theory has two components; a pattern
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