oscillation that ranges from 3 KHz to 300 GHz and work hand in hand with the frequency of the radio waves and the fluctuation currents that carry radio signals. Radio Frequency has different types of properties but ones that are most important are the radiation of electromagnetic waves cause by the energy in a RF current. Usually an electromagnetic wave is the main base of what is known to be Radio Technology. RF can be found emitting around conductors of electrical currents‚ they are usually not found
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Examples of Radiant Energy The term radiant energy refers to energy that travels by waves or particles‚ particularly electromagnetic radiation such as heat or x-rays. Radiant energy is created through electromagnetic waves and was discovered in 1885 by Sir William Crookes. Fields in which this terminology is most often used are telecommunications‚ heating‚ radiometry‚ lighting‚ and in terms of energy created from the sun. Radiant energy is measured in joules. Ads by Google Best Solar Investments
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Basic Physics Content with Answers 1. In the absence of air resistance‚ a ball of mass m is tossed upward to reach a height of 20 m. At the 10m position‚ half way up‚ the net force on the ball is A. 2mg. B. mg. C. mg/2. D. mg/4. B is correct‚ as a vector diagram would show. Other choices show carelessness or confusion between force and speed‚ and what constant acceleration means. 2. When you drop a ball it accelerates downward at 9.8 m/s2. If you instead throw it downward‚ then its acceleration
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An adventure into Astronomy Late at night I like to go into my backyard with a telescope and look at the stars that far away in the night sky. The view of thousands of stars feeds me with wonder and amazement about both the stars origins‚ and what treasures they may hold floating around them. All life needs a host star to form around‚ and all life comes from the ashes of these once glorious masses of gas. Astronomy offers us a great view of the universe around us‚ you can join me and others‚
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to aerials. Microwaves are detected with piezoelectric crystals. Visible light is detected by photoelectric cells. 4. explain that the relationship between the intensity of electromagnetic radiation and distance from a source is an example of the inverse square law: I d12 Electromagnetic radiation attenuates over distance‚ i.e. the further you are away from an electromagnetic source the less the intensity will be. This can be applied to light‚ as if you move away from a light it will be less
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Professionalism is an adherence to a set of values comprising both a formally agreed-upon code of conduct and the informal expectations of colleagues‚ clients and society. The key values include acting in a patient’s interest‚ responsiveness to the health needs of society‚ maintaining the highest standards of excellence in the practice of medicine and in the generation and dissemination of knowledge. In addition to medical knowledge and skills‚ medical professionals should present psychosocial and
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of electromagnetic radiation with matter in the experiment it means it’s the usage of ultra-light to measure the absorbance of the copper sulpate. The regions of the electromagnetic spectrum immediately adjacent to the high- and low- energy extremes of the visible region are known as the ultraviolet (UV) and infrared (IR) regions respectively. Thus a quantum of UV radiation possesses more energy than one in the visible region whilst the reverse is true for quantum of IR radiation. All spectrophotometric
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comes from atoms that are in a excited state because of the high thermal energy of the flame. Each element is measured by absorption or emission of ultraviolet or visible radiation by the gaseous atoms. Samples are vaporized between 2000 and 8000 K and the vapors are measured by absorption of characteristic wavelengths of radiation. The samples should be diluted to ppm to analyze major constituents. Chemical equations that were used were the equation of the line y = mx + b which would be attained
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SPECTROPHOTOMETRY Spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength It involves with the use of a spectrophotometer. A spectrophotometer is a photometer that can measure intensity as a function of the light source wavelength. A spectrophotometer is commonly used for the measurement of transmittance or reflectance of solutions‚ transparent or opaque solids‚ such as polished glass‚ or gases. Principles
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The Military’s Pandora’s Box by Dr. Nick Begich and Jeane Manning This article was prepared to provide a summary of the contents of a book written in 1995 which describes an entirely new class of weapons. The weapons and their effects are described in the following pages. The United States Navy and Air Force have joined with the University of Alaska‚ Fairbanks‚ to build a prototype for a ground based "Star Wars" weapon system located in the remote bush country of Alaska. The individuals who
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