Q1. Figure 1 shows a solid cylindrical steel rod of length = 2.0 m and diameter D = 2.0 cm. What will be increase in its length when m = 80 kg block is attached to its bottom end? (Young’s modulus of steel = 1.9 × 1011 Pa) Fig# Answer: ∆L = FL mg = AY AY = = 0.0000262689 m A) B) C) D) E) 2.6 x 10-5 m 1.3 x 10-5 m 4.8 x 10-5 m 7.2 x 10-5 m 3.5 x 10-5 m Phys101 Term: 111 Final Tuesday‚ January 10‚ 2012 Code: 1 Page: 1 Q2. In Fig. 2‚ PQ is a horizontal uniform beam weighing
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Dependent Variable: Velocity of wave (wave velocity) Constants: Plastic storage container Piece of wood Height from which the wood is dropped and the way it is held before each time it is dropped Gravel-like substance that creates an uneven bottom—this includes both its physical material and the amount of it that is placed on the bottom of the tank during each treatment Time at which the stopwatch is started after the wooden block is dropped and a wave is created Problem: It is a known
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influence how much a work a river can do (25) The work that a river does is erosion‚ transportation and deposition. The amount of work a river can do is dependent on the energy it has and this energy is determined by many factors. The study of water flow in a river channel is known as hydraulics. Hydraulic geometry is the study of the relationships that exist within river channels that ultimately determine how much work the river will be able to carry out. Width‚ depth‚ velocity‚ discharge‚ channel
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Geography Rivers 1. The speed and volume of a river varies from place to place along a river’s course because of many reasons. In the upper course‚ the volume of water is low as there are few tributaries. In comparison‚ the volume of water in the middle course is higher as there are more tributaries supplying water to the main river channel. The volume of water in the lower course is the highest as the lower course has the most tributaries. However‚ many other factors will also affect the
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The Po River The Po River is located in Italy. The river flows from the Cottain Alps through many cities and empties into the Adriatic Sea. Although the Po is a very beautiful river it threatens many cities because of its spring and fall floods. The flood water tears away ranks and bridges and destroys fields and towns. To help control the flood waters they build dams. Two good things about these dams where that the slowed water flow and the created hydroelectric energy. To travel by boat on
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River velocity Measuring the velocity allows us to determine the speed‚ at which the river travels. If a high quantity of rain falls close to the source of the river there will be a greater amount of water travelling down stream and as a result the volume of water will be travelling at a higher speed. In the section of the river harbourne that that this measurement was taken in a high river velocity can indicate that Harbertonford is susceptible to flooding‚ a hazard that the flood defences
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The Floating Villages The Mekong River runs through Cambodia and Vietnam where it flows out into the South China Sea. This hugely important river is home to a number of floating villages throughout Cambodia and Vietnam. However changes in the river levels and the effects of pollution threaten these established communities and there place in society as well as how they utilise the space around them. On a boat trip of the Mekong River in July this year I got to see‚ firsthand‚ how these floating
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these supports. Divers were sent into the river to see if they could discover exactly where the body was lodged and how to get the girl out of the river. Political pressure and clout also played an important role in both accounts. Governors‚ senators‚ government agencies‚ and people that lived in the area where the accident occurred were pitted against each other in the attempt to determine how to retrieve the drowning victim. In the book Saints at the River‚ dynamite was used in order to recover
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Carol Sheriff’s The Artificial River The Erie Canal and the Paradox of Progress‚ 1817-1862 APUS‚ Section 4
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change with the long profile in the River Wandle? Background: In south – east England the River Wandle lies as a tributary to the river Thames running through south west London at 9 miles long. The names of the river and of wandsworth have been seen to derive from old the old English “Wendlesworth” meaning “Wendle’s settlement.” Rain falls on the North Downs‚ filters through the chalk and emerges on the spring line at the wandles two main sources. The river has been used since roman times and
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