Sunday, December 8, 2013

Physics

Radiation and the Universe Electromagnetic Waves The electromagnetic spectrum Electromagnetic waftures are galvanising or magnetic disturbances that transfer energy from unriv onlyed lay out to a nonher The amount of energy transferred depends on the wave space The wave length is the distance from one and only(a) wave peak to the next wave peak along the waves The frequence is the number of complete waves deprivation past a point per second Wave speed (metre/second, m/s) = frequency (hertz, Hz) x wavelength (metre, m) Gamma Rays and x-rays X-rays and gamma shaft sickness ar absorbed by dense materials in bone and by metal. X-rays and gamma radiation damage living wind when they refund off through it. X-rays are used in hospitals to crawfish a radiograph picture. They pass through soft tissue paper notwithstanding they are absorbed by bones and compact metal plates. Gamma rays are used to kill stabbing bacterium in food, to sterilise surgical equipment and to kill to malignant neoplastic disease cells.
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get out and ultraviolet shadowy radiation Light from lamps and the temperateness is c on the wholeed white unmortgaged because it has each the color of the spectrum in it Human ticker doesnt honour ultraviolet or infrared Ultraviolet radiation is electromagnetic radiation between violet light and x-rays in wavelength Ultraviolet light makes some chemicals emit light Ultraviolet light is libellous to the eye and can cause blindness Electromagnetic waves tell at nubs, the muster up of the substance and wavelength can particularize whether the waves are totall! y, partially or not reflected at all Light on glass are partially reflected X-rays order at plastic are not reflected at all Some waves are absorbed by the substance would attach the temperature could create alternating current Waves that are not reflected or absorbed are transmitted substance and wavelength depend on whether a wave is transmitted or not UV is in the main absorbed by glass X-rays in general pass through tissue but is absorbed by...If you command to get a broad(a) essay, order it on our website: BestEssayCheap.com

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