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4. Name the basic SI unit of measurement for each of the following: Volume is measured in _Liter_ Mass is measured in _gram_ …
The Chesapeake Bay Bridge (commonly known as the "Bay Bridge") is a major dual-span bridge in the U.S. state of Maryland. Spanning the Chesapeake Bay, it connects the state's rural Eastern Shore region with the urban Western Shore. The original span opened in 1952 and with a length of 4.3 miles (6.9 km), was the world's longest continuous over-water steel structure; the parallel span was added in 1973. The bridge is officially named the "Gov. William Preston Lane, Jr. Memorial Bridge" after William Preston Lane, Jr. who, as the 52nd Governor of Maryland, initiated its construction in the late 1940s finally after decades of political indecision and public…
The emergency response driver will be driving at extreme speeds through built up areas which has high risk to pedestrians.…
20/5/2014 TRANSPORTATION ENGINEERING EV407 ASST. PROF. DR. DEPRIZON SYAMSUNUR UCSI KUALA LUMPUR MAY 2014 deprizon@yahoo.com +60146468479 INTRODUCTION TO TRANSPORTATION 1 20/5/2014 Content • • • • • • • What is Transportation? Mode of transportation Function of transportation…
Tides are the periodic rise and falling of large bodies of water. The word tide is a term used to define the alternating rise and fall in sea level relevant to the land produced by the gravitational attraction of the moon and the sun.…
Humans have tamed steel, stone, lumber, and even living vegetation, all in effort to reach the people, places, and things that we desire. Although the concept of bridges is as simple as a tree falling across a creek, bridge design and construction requires very serious ingenuity. Artists, engineers, and architects pour vast resources into bridge construction so that they can reshape our daily environment for the better. When building bridges you’ll need help from BATS which are the key structural components of bridge construction such as beams, arches , trusses, and suspensions. Various combinations of these four technologies make it possible for numerous bridge designs, ranging from some bridges as simple as beam bridges, arch bridges, truss bridges, and suspension bridges to more complicated bridges like side-spar cable-stayed bridges. Some of the key differences between these four types of bridges is the lengths that they can cross a single span, which is the total distancve between two of the bridges supports. Bridges supports can take the forms of columns, towers or even the walls of nature around the bridge like canyons. Beam bridges range up to 200 feet , while modern arch bridges can reach up to 800-1000 feet safely. Suspension bridges on the other hand are able to extend from 2000-7000 feet across. Compression and tension are present in all bridges and they are capable of damaging parts of the bridge as varying load weights and other forces act on the structure of the bridge. It is the job of the bridge design to handle these forces without buckling or snapping. Buckling occurs when a compression is able to overcome a objects ability to endure that certain force. Snapping is what happens when tension surpasses an objects ability to handle the lengthening force. The most effective way to deal with these powerful forces is to either dissipate them or transfer them. With the dissipation the design allows the force to be spread out over a greater area so that…
The Tacoma bridge collapse can be attributed to the waves caused by the buildup of energetic vibrations. These energetic vibrations were built up from the bridge “taking energy from the steadily blowing wind” (Crowell). Eventually enough of these energetic vibrations built up to cause resonance within the system, causing the wave-like motion of the bridge.…
There is many reason that we need bridges in every day of our life, from sufficient means to pass over a roadway, waterway, railway, or other structure. You don’t even think about them because it takes no effort to get over them and they are just there for your use. So if you don’t think of them for everyday use I highly doubt that you would think of the physics that is involved in putting one together or the kind of force the bridge can actually take. I am going to show you the max force a truss bridge can take by demonstration it to you in class and also by trying to calculate it. I am also going to go over the many ways that truss bridges can fail and come to a tumbling crash.…
The new idea is that "At a handful of intersections around town, illuminated LED strips of light (called "+Lichtlijn," or light lines) have been installed into the pavement." (Wang, paragraph 3). This will help the pedestrians with their phone problem. This will distract the walkers and make them cautious, because "The "light lines" can change color and are synced with their corresponding traffic lights." (Wang, paragraph 4) This means that if the crossing light turns green, the light lines will turn green as well. The pedestrians are already looking down towards their feet anyway, so the idea is perfect! The article suggests that "The council's list of pedestrian safety tips includes such age-old advice as "Look left, right and left again before crossing the street" but also now warns never to use a cellphone or other electronic device while walking."(Wang, paragraph 13) Kids these days should be getting taught to turn off their phones when walking around! The article points out that "The group (National Safety Council) found that distracted walking was responsible for more than 11,100 injuries between 2000 and 2011." (Wang, paragraph 12) Does this mean the light lines could save lives and increase safety? I…
My object is a bridal. bridles are used for controlling a horse's direction and you can also use it to help a horse to stop moving. This Is a western Bridle that is my favorite style of riding. and I chose this object because it is a key part of riding and you have to have the knowledge about it to own a horse. There are many parts of a bridle, I enjoy different bits. This is a broken eggbutt snaffle with no cheek bars. This bit is the most commonly used bit in the USA and the UK. It is the most common because it is so gentle, less aggressive, and used for training. If the bit has long metal pieces on the bit that will run along the cheek and the more of it there is you have more control.…
Suspension bridges come in two different designs: the suspension bridge, recognized by the elongated 'M' shape, and the less-common cable-stayed design, which has more of an 'A' shape. The cable-stayed bridge does not require two towers and four anchorages as does the suspension bridge. Instead, the cables are run from the roadway up to a single tower where they are secured.…
A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component. Its operation is similar to the original potentiometer. It was invented by Samuel Hunter Christie in 1833 and improved and popularized by Sir Charles Wheatstone in 1843. One of the Wheatstone bridge's initial uses was for the purpose of soils analysis and comparison.[1]…
Wind is a word that used to describe the motion of the air. It is the natural phenomenon which caused by temperature differential that is resulted from solar radiation. A moving wind that comes in contact with a solid structure will be distracted. Although the wind structure is not fully stopped, it still loses some of its velocity. This is due to the frictional force faced by the wind flow and the surface of the bridge. This phenomenon is actually called wind loading which can give big impact on the structure of the bridge.…
Even I too Appreciate the way they are dealing with the pedestrian's safety measures. They give much importance to pedestrians and its not like giving importance to the person but life. The US government also launching many laws for the pedestrian safety. Also, the road rules and regulations are outstanding in US. There is no cheating involved in getting 'Driving…
KINEMATIC DERIVATION OF THE HARMONIC WAVE EQUATION AND RELATED TOPICS An extremely important type of wave in physics is the harmonic wave. This is a wave consisting of propagating simple harmonic oscillations or linear combinations thereof. Attach a weight to a spring and hang the spring so the weight is free to move. Then lift the weight straight up and release it; it will oscillate up and down in a close approximation to simple harmonic motion. Now imagine that you have a whole array of such mass-spring systems, all oscillating independently. If you could add all their oscillations together, you would get linear combination of simple harmonic motions. Whether a harmonic wave involves propagating oscillations of a solid, liquid, gas, or electromagnetic field, the oscillations will consist, in general, of a linear combination of simple harmonic motions as exemplified by the sum of the oscillations of the multiple mass-spring system.…