Waves Assignment Microwave Ovens Microwave ovens‚ or microwaves‚ are kitchen appliances which use microwave radiation to cook‚ heat or defrost food. Properties of a microwave: Microwaves are electromagnetic waves with wavelengths longer than those of Terahertz (THz) wavelengths‚ but relatively short for radio waves. Microwaves have wavelengths approximately in the range of 30 cm (frequency = 1 GHz) to 1 mm (300 GHz). The word microwave generally refers to "alternating current signals with
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History and Modern Applications of X-Rays We see X-Rays all the time in television‚ science fiction novels‚ and comic book superheroes‚ but what is fact and what is fiction? By examining their makeup‚ history‚ modern applications‚ dangers‚ protection‚ and even possible future developments we can understand these scientific marvels far better and more accurately than watching an episode of Star Trek or reading a Superman comic. First and most important is to analyze why an X-ray works and what
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(Translation) Exposures Foreign Exchange Exposure – measures the potential for a firm’s profitability‚ net cash flow‚ and market value to alter because of a change in exchange rates. Q: What are the three main foreign exchange exposures? A: 1) Transaction Exposure 2) Operating Exposure 3) Accounting Exposure Transaction Exposure – measures changes in the value of outstanding financial obligations incurred prior to a change in exchange rates. Operating Exposure (Economic Exposure‚ Competitive
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Competitive Exposure GM’s Case Study 3 Question 1 - Why is GM worried about the evolution of the JPY? * The Japanese automakers were one of the main competitors of General Motors because their main advantage came from having large portions of their cost structure denominated in Yen‚ which meant that they were liable to achieve significantly reduced costs in the face of currency depreciation. This reduced cost would comprise of lower cost of productions‚ thus leading to a rise in the Product
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effects on human health and control of air pollution‚ indoor air pollution‚ noise pollution; • describe water pollution‚ its causes and control; • describe thermal pollution; • describe soil pollution‚ its causes and control; • describe radiation pollution‚ sources and hazards. 10.1 POLLUTION AND POLLUTANTS Human activities directly or indirectly affect the environment adversely. A stone crusher adds a lot of suspended particulate matter and noise into the atmosphere. Automobiles emit from
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“killing cancerous cells” (Ioffe). This process is called radiation therapy. Some examples of the radioisotopes in this process are “Iodine-131‚ phosphorus-32” and for “more radical uses‚ Boron-10 to specifically attack tumor cells” (Ioffe). In the process‚ radioactive elements are inserted near the tumor. Radiation is more harmful to growing cells and cancerous cells grow at an uncontrolled rate‚ giving them a disadvantage to radiation exposure. The cancerous will start to be destroyed and when it is
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Everywhere I turn‚ I see someone on a cell phone‚ either talking or texting. Every car next to me in traffic has a GPS on the dashboard‚ including my own. It seems that everyone needs some help from technology on a daily basis. It both surrounds and intrigues us. Technology can be helpful‚ fun‚ and entertaining. Much of technology is created to assist with making projects faster or daily tasks more efficient. However‚ the collaboration of technologies in our lives has a few negative effects and I
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Elemental Exposure-General Truisms Childhood Lead Poisoning Why you might be smarter than your parents • Most are not toxic • Nutritional = less toxic (Zn‚ Cd) Noel Stanton WI State Lab of Hygiene 2601 Agriculture Drive PO Box 7996 Madison WI 53707 (608) 224-6251 nvstox@mail.slh.wisc.edu – Homeostasis • Abundance = toxicity • Every truism has exceptions Speciation Considerations • Can greatly influence toxicity • Ability to differentiate limited‚ improving – Cr+3
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country. Human exposure to high concentrations of this gas for extended periods of time can be extremely damaging to health. Lung cancer has the highest mortality rate of any cancer‚ and it is estimated that 15% of all cases of lung cancer in the United States result from exposure to radon gas. The government has taken steps to mitigate this problem‚ but the problem still persists. There are simple and inexpensive methods to drastically reduce the risks of radon gas exposure‚ and pursuing such
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bladder cancer. I’m not really sure why i chose this cancer but i find it cool that you can get cancer in all different places. Nobody knows the main cause of bladder cancer. Some things that may cause cancer is chronic bladder inflammation‚ chemical exposure or smoking. I find it very weird that smoking could affect your bladder or even drinking caffeine can. Cystoscopy is the main diagnostic test for bladder cancer‚ you can also get a bladder biopsy which will tell you if your cancer has spread. Another
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