Shallow-water Acoustics and Relevant Physics By: Elizabeth Fortlage Underwater Acoustics is a complex phenomenon. Leonardo da Vinci simplified the concept in 1940‚ two years before Columbus discovered America‚ by saying “If you can cause your ship to stop and place the head of a long tube in the water and place the outer extremity to your ear‚ you will hear ships at a great distance from you.” (5‚ p.2) There are many factors that contribute to the complexity of underwater acoustics and sonar
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Modelling Key language features of an exposition Purpose: to identify language features of an exposition Teacher introduce the various language features of an exposition to the class. Thinking (sensing) Verbs • Teacher write the following sentence on the board “Kim ……………………… very well” • Ask students if the sentence make sence. Ask them what word they might include in the sentence so that it makes sence e.g is‚ feels‚ plays the piano • Explain that these words tell us what is going on in the
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December 6‚ 2012 Time Travel and the Speed of Light Do Time Travel and the Speed of Light have anything to do with each other? If you are able to travel at the speed of light‚ will that give you the ability to go back or forward in time? In this paper I will try to explain through research some of the possibilities. In theory‚ once you reach the speed of light time will freeze. Traveling at speeds close to the speed of light has a great effect for the travelers. It causes time
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This calculated speed of the pedestrian is a conservative estimate of the speed of the Nissan. Normally‚ a pedestrian does not obtain 100% of the vehicle’s striking speed. A pedestrian struck by a low profile vehicle‚ (leading edge is at or below 25” / IPTM: Vehicle-Pedestrian-Bicycle Collision Investigation Manual / Tony L. Becker)} will gain a lower percentage of the vehicle’s impact speed. (Pedestrian Accident Reconstruction and Litigation 2nd Edition
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For water bound macadam roads in localities of heavy rainfall‚ the recommended value of camber is a) 1 in 30 b) 1 in 36 c) 1 in 48 d) 1 in 60 6. The stopping sight distance depends upon a) total reaction time of driver b) speed of vehicle c) efficiency of brakes d) all of the above 7. When the path travelled along the road surface is more than the circumferential movement of the wheels due to rotation‚ then it results in a) slipping b) skidding c) turning
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No Airport? No Runway? No Problem! The Next Generation “Super Goose” by Antilles Seaplanes LLC Antilles Seaplanes Model G-21G Specifications & Descriptions Exhibit A Page 1 of 17 General Description All information herein applies to the Antilles Seaplanes Model G-21G “Super Goose” - a high wing‚ twin turbine powered‚ ten-seat‚ amphibious airplane. Certification Information Manufacturer & Model Number Antilles Seaplanes G-21G Name “Super Goose” FAA Type Certificate Date Sheet Approved Operations
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about 49.4 percent of all accidental deaths. That is not all from speeding‚ but it would be higher without speed limits. Motorists who exceed speed limits swerve in and out of lanes‚ which cause them to lose control of their vehicle. When seeing these cars on the news‚ speeding and getting into car accidents‚ you see the picture of the car and it is smashed. It leaves a fatal memory. Speed limits are a must for traffic control‚ for safety in neighbor hoods and for avoidance of collisions. Accidents
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During the duration of my life I have been in many different motor vehicles‚ mostly being a passenger. But now as I have come of age‚ I am allowed to be the driver and with that there comes responsibility‚ such as obeying the speed limit. Just a little over a year ago a close friend of min died in a horrific car accident. My friend Mathew Zeller died wile driving home from the Jefferson valley mall. It was around 6:00pm and it was very rainy outside‚ and the roads where wet. As he was coming around
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Plan a night photo-shoot anywhere in the world. Tell me where you would photograph and what your subject would be. What considerations would you have to make in terms of the shutter speed and aperture? What challenges might the scene present (i.e.‚ artificial lighting‚ moving objects‚ etc.) If I had to choose the best place I would want to do a photot shoot at‚ it would have to be Two Lovers Point in Guam. Two Lovers Point is a beautiful cliff on the island that is frighteningly huge and a straight
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class) seat versions. Engine: twin-engine‚ medium range‚ turbo prop. Features: the dash 8 features a high mounted wing and T-tail‚ an advanced flight control system and large full length trailing edge flaps. Wing span: 90 ft (27.43 m) Cruising speed: 328 mph (528 km/h) 285 knots Max. takeoff weight: 43‚000 lb (19‚500 kg) Fuel capacity: 848 US gal (3‚210 L) Aircraft type: Boeing 737-800 aircraft. Seating: 110 to 210 passengers. Engine: a short- to medium-range twin-engine. Features:
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