heard in one minute when two notes are played together. If the higher note has a frequency of 740 Hz‚ what is the frequency of the lower note? a. 742 Hz c. 739.5 Hz b. 738 Hz d. 740.5 Hz ____ 13. What is the formula to find speed of light? a. c = /f c. c = f/ b. c = f d. 2/f
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on Electronic Measurement and Instruments ICEMI’2007 An Optimal Lights Layout Scheme for Visible-Light Communication System Ding Deqiang1‚2 Ke Xizheng1 Xu Linpeng3 1. Automation & Information School of Xi’an University of Technology‚ Xi’an‚ 710048 ‚China (2. Xi’an Communication College‚Xi ’an 710106‚ China) (3. Avic I Xi’an Flight Automatic Control Reaearch Institute‚ Xi’an‚ 710048‚ China) Abstract: The visible-light communication is a novel kind of optical wireless communication utilizing
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the Speed of Light Why is the speed of light important? -Having a accurate number for the speed of light allows for accurate measurements of the universe around us -Even small inaccuracies make large differences when measuring the space between stars‚ planets‚ and galaxies -The more precise our measurement of the speed of light the more precise our measurements are of the universe because light is the universal measurement used Light as Infinite -Most scholars agreed that light had an infinite
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The Compound Light Microscope Commonly binocular (two eyepieces)‚ the compound light microscope‚ combines the power of lenses and light to enlarge the subject being viewed. Typically‚ the eyepiece itself allows for 10X or 15X magnification and when combined with the three or four objective lenses‚ which can be rotated into the field of view‚ produce higher magnification to a maximum of around 1000X generally. The compound light microscope is popular among botanists for studying plant cells‚ in
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was a pioneer of history; he changed the world with his ingenious invention of the light bulb. Back in the days‚ people had to use candles‚ flashlights and even had bed times. Life without the light bulb was very difficult and certainly changed many people’s lives. The invention of the light bulb had major impact throughout history‚ affecting geographic‚ economic‚ and psychological aspects of people’s lives. The light bulb for many decades has changed the physical world we live in. “At the time‚ most
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The discovery of the light bulb Finally the bell rings everybody running toward homeroom I take my time and pack my books away. We just watched a video about Virginia part of the 13 colonies back then in history class. Since I was the last one to leave my teacher Mrs.Trovato said “did you enjoy watching the video?”I quietly respond yes and start wondering about how people survived back then. When I came back from school I changed my skinny jeans and blouse in to my sweats and tank top. Quickly
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The poem “Charge of the Light Brigade” by Alfred‚ Lord Tennyson. The poem talks about a Battle. It is filled with many literary devices and organized very well for a poem. The type of rhyme and meter that Alfred used in his poem was dactylic. The three most prominent poetic devices used to depict this battle are repetition‚ imagery and metaphors. In this play there was a lot of repetition used. It was used to help stress the emotion of what the author was trying to get across. For one example the
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Entering A World of Light By Sam Veliz 3/17/12 Period 4 Oftentimes‚ when something valuable is lost‚ one may begin to realize the importance and value of that article. Although what is lost may never be restored‚ in its absence‚ there is a tendency for one to travel deeper into a world of trying to uncover the meaning of its presence and understanding its purpose. In Cry‚ the Beloved Country‚ James Jarvis goes through a period of comprehending what his son‚ Arthur Jarvis‚ was attempting
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A. What is the name of the pigment that captures light? Chlorophyll B. Why does the pigment appear green? It absorbs other colors of light such as red and blue‚ so in a way the green light is reflected out since the pigment does not absorb it. 2. List two variables besides the wavelength (color) of light which might affect the rate of food production in plants. Light intensity and carbon dioxide 3. Why is chlorophyll important for all biological life? It is necessary for photosynthesis which
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Speed of Light and the Moons of Jupiter Introduction: In this lab we focused on the eclipses of the moon Io of Jupiter. Galileo was the first to discover the four moons of Jupiter and since then astronomers have discovered the orbital periods of them‚ 1.8 days being approximately Io’s. It was also noted that these moons disappeared and reappeared at certain points in their orbit. This was because when the moons were behind Jupiter they were not able to reflect light. In this lab we had to
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