what is a wave? a wave is a disturbance which travels through a medium and transfers energy from one point to another without causing any permanent displacement of the medium itself. if a stone is dropped in a pond or swimming pool‚ ripples or waves are seen spreading on the surface of the water from the point where it was dropped. the water itself does not move in the direction of the ripples‚ but the waves transfers energy from one point to another. there are two major classes of waves ; mechanical
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parallel manner. After they approach the lens‚ each ray will refract towards the normal. The light is passing from an optical less dense medium (Air) into a more dense medium (such as plastic or glass) at this boundary. Since the light rays are passing the boundary from a less dense medium in which light travels fast (optically less dense) into a more dense medium in which light travels slowly (more optically dense)‚ light will refract towards the normal line. This is demonstrated by the two incident
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8th physics light reflection refraction eyes defect and dispersion The ray of light which falls on the mirror surface is called incident ray. The point at which the incident ray strikes the mirror is called the point of incidence. The ray of light which is sent back by the mirror is called the reflected ray. The ‘normal’ is a line drawn at right angles to the mirror surface at the point of incidence. The angle between incident ray and normal is called the angle of incidence. The angle between
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pain. 11. Describe the senses of taste and smell‚ and comment on the nature of sensory interaction. 12. Distinguish between kinesthesis and the vestibular sense. 13. Discuss the effects of sensory restriction. Sensation and perception‚ p. 171 Medium‚ Factual/Definitional‚ Objective 1‚ Ans: b 1. Sensation is the: a. transformation of sound and light into meaningful words and images. b. detection and encoding of stimulus energies by the nervous system. c. organization and interpretation of environmental
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the revenue models of its chief media of growth. Newspapers‚ radio‚ television and the internet largely depend on the advertising revenues they generate. Advertising has‚ to some extent‚ been a victim of its own success. As the ad clutter in any one medium increases‚ each individual campaign suffers diminishing returns. This forces ad men to look at newer‚ more effective media for their advertisements. Defining ambient advertising Defining ambient advertising is a tricky affair as what may be considered
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When an object vibrates‚ the particles around the medium vibrate. The particle in contact with the vibrating object is first displaced from its equilibrium position The disturbance produced by the vibrating body travels through the medium but the particles do not move forward themselves. A wave is a disturbance which moves through a medium by the vibration of the particles of the medium. So sound is considered as a wave.Sound waves Require medium for transmission.Sound waves are called mechanical
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risk rating Required controls Post control risk rating High Medium Low High Medium Low Adhesives Vapor may cause drowsiness and dizziness. Irritating to eyes. Medium Use only on well ventilated areas. Avoid contact with eyes by wearing protective glasses and gas mask whenever necessary. Low Power tools Operators risk injuries if they receive a shock from faulty electrical equipment. Medium Operators should check all cables of all powered tools or equipments
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requirements The composition of medium for the tissue culture is the most important key factor in the successful culture of plant cells. The medium should be accurately defined of inorganic and organic chemical additives so as to provide i) the nutrients for the survival of the plant cells‚ tissues and organs under culture and ii) the optimal physical condition of pH‚ osmotic pressure‚ etc. In the culture of plant cells formulating optimum type of medium favorable for in vitro culture was
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NUCOR MEMORANDUM To: F. Kenneth Iverson and Management Team of Nucor Corporation CC: AGSM Faculty Teams Subject: Investment Decision Date: 04/22/2009 From: 1713898 The Situation In 1986‚ flat sheet segment contained 52% of US total steel market1. Nucor Corporation‚ which is a steel minimill well-known for its leadership‚ efficient operation and well-structured compensation‚ is showing the interest in the flat sheet segment. At the same time‚ there are many new thin-slab casting technologies to
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64. Interpret the following results: A. The color of the medium remains purple or light blue-gray; there is also no change in the texture of the medium. * No change B. Change in the color of litmus from purple to pink or pink-red throughout the tube. Upon further incubation a white ring of litmus forms at the bottom of the tube at the pink-red color is now present only at the top of the tube. Still further incubation leads to the formation of a rennet curd at the bottom of the
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