represented by the formula v= ƒλ ‚ 1) Raw data presented Table 1 Table 1 shows the frequency of the different tuning forks and the length of air needed for maximum resonance. The error on the length was estimated to 0.1 cm as we repeated eachexperiment several times. Note the error on the forks’ frequencies is a mere estimation as theyare accurately calibrated during manufacture. Frequency /HzLength /m 512.00.157480.00.169456.10.178426.60.192406.40.202384.00.215362.00.226341.30.243320
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BC107 BC108 LOW NOISE GENERAL PURPOSE AUDIO AMPLIFIERS DESCRIPTION The BC107 and BC108 are silicon planar epitaxial NPN transistors in TO-18 metal case. They are suitable for use in driver stages‚ low noise input stages and signal processing circuits of television reveivers. The PNP complemet for BC107 is BC177. TO-18 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit BC107 BC108 V CBO Collector-Base Voltage (IE = 0) 50 30
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moved. They were told to describe what happened‚ and what caused them to move. The students came to the conclusion that the sound caused the solid to bounce and vibrate. They then used an app called twisted wave recorder to show the amplitude and frequency of sound waves‚ they noted though it only shows the waves in 2-D rather than 3-D. the students were then asked to record their voice loudly and softly and determine the differences the pitch made to the wave. The class notice high sound waves are
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Tom Milligan Miligan & Associates 8204 West Polk Place Uttleton‚ CO 80123 ~303) w7-726a (303)977-8853(Fax) TMilligan@ieee.org (e-mall) Design of Corrugated Horns: A Primer Christophe Granet and Graeme L. James CSIRO ICT Centre‚ Electromagnetics & Antennas PO Box 76‚ Epping 1710‚ NSW‚ Australia E-mail: Christophe.Granet@csiro.au Keywords: Corrugated horn antennas; antenna feeds; reflector antenna feeds Slots 1. Introduction 0 ver the past 40 years‚ corrugated horns supporting
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(C) π 20 (D) 100 10. In a travelling electromagnetic wave‚ E and H vector fields are (A) (B) (C) (D) perpendicular in space . parallel in space. E is in the direction of wave travel. H is in the direction of wave travel. 11. The lower cut-off frequency of a rectangular waveguide with inside
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range H5‚ and you clicked OK‚ the spreadsheet would look like this: The next step is to make a bar chart of the Frequency column (I6:I15 in the example above). Block the frequency range‚ click on the graph Wizard‚ and choose Column Graph‚ click on Finish. Delete the Series legend‚ right click on the edge of the graph and choose Source Data ‚ and enter the Bin frequencies (H6:H15) for the X-Axis Category labels. Notice the labels have been manually altered to represnet a range (54-56) instead
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attendance‚ integration‚ satisfaction with school‚ recent meetings with school administrators /instructors‚ etc. Community Service Provide a description of the activity and note the name of the organization/institution where activity takes place‚ frequency‚ number of people involved and who they are as well as the impact of activity on the community. Miscellaneous Note things such as: upcoming travel plans‚ academic breaks‚ general observations‚ visa/residency issues‚ etc. Student Name:
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counter of the microcontroller gives the speed of the rotating shaft. The microcontroller is interfaced with an LCD to display the speed. The LCD directly displays the speed of the device in rpm. The controller is selected based on the high processing frequency it needs to meet. The concept of the contact-less tachometer can be enhanced and implemented in industries like recycling facilities‚ chemical plants‚ automotive plants‚ material handling‚ food/beverage facilities‚ paper mills and many others
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our own native American Indians for centuries. Repetitive sound vibrations such as chanting‚ drumming‚ and toning have been used as part of spiritual practices to restore and rejuvenate mind‚ body and spirit. This vibration causes a natural frequency in every object including the human body. When our energy centers (Chakras) become blocked because of negative thinking‚ excessive stress and exposure to environmental factors‚ they begin to vibrate out of tune‚ and we experience “dis ease” or disease
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EFFECT OF BREAKWATERS ON WAVE ENERGY DISSIPATION ABSTRACT The northern Egyptian coasts are subjected to many changes in shoreline balance due to waves and coastal currents. To protect and develop these coasts‚ many types of coastal protection structures have been used. This research demonstrates the effect of different systems of coastal protection structures on wave energy dissipation. By using the CGWAVE numerical model‚ the effect of each one and interaction between these structures on
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