Liquid Film Motors [pic] Fiona McLaughlin Zoe Cheng Loreto College Coleraine Comments Abstract We have carried out an experimental and theoretical study of liquid film motors. This phenomenon was first reported in 2009. Two papers have been published on arXiv.com‚ the first describing the phenomenon (Shiryaeva et al)‚ the second offering a theoretical model for the observations (Amjadi et al). The
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Born the son of an astronomer‚ Phidias‚ in 287 B.C.‚ Archimedes’ education began as a young man in Syracuse. He furthered his education in Alexandria‚ where he studied with fellow scholar Conon‚ an Egyptian mathematician. What we know of Archimedes comes from his personal works as well as those of Cicero and Plutarch. However‚ "due to the length of time between Archimedes’ death and his biographers’ accounts‚ as well as inconsistencies among their writings‚ details of his life must remain subject
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(Amira et al 9). Swimmers benefit from low-impact treatment for some conditions and injuries that require limited strain such as a dislocated joint. The pressure on connective tissues and joints is reduced by approximately a 1/10th by flesh buoyancy. Swimmers can engage in myriad of workouts with low chances of acquiring physical injuries.
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Dominic Sachs 2nd block Archimedes Inventions of Archimedes Archimedes area of expertise was inventions and coming up with great ideas. He was a very smart person‚ and had invented some useful inventions for human kind for what is still used today. BC. He was a physicist‚ engineer‚ inventor‚ astronomer and a Greek mathematician. Archimedes is one of the greatest math mathematicians of all time. He has been given credit for the invention of the lever even though it was used thousand
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possible efficiency‚ given by the following equations. The equivalent of efficiency for a heat pump is the coefficient of performance. Fluids A volume‚ V‚ of fluid with mass‚ m‚ has density‚ ρ. A force‚ F‚ over an area‚ A‚ gives rise to a pressure‚P. The pressure of a fluid at a depth of h depends on the density and the gravitational constant‚ g. Objects immersed in a fluid causing a
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the earth and form small ponds. When it rains or snows the precipitation seeps down about 10‚000 feet into the earth and is heated to 400° Fahrenheit. Due to the pressure of the rocks above the water it stays in a liquid state. It loses density but gains buoyancy which allows it to rise to the surface of the earth again. The rising water carries silica as it climbs to the
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Throughout the course of life evolution has taken its place on plants and animals. One of the greatest evolutionary changes was the transition of life in water‚ to the transition to life on land. As you can imagine‚ both organisms had challenges moving from this single cellular water environment to a multi-cellular land environment. While the change was difficult‚ this new environment would help organisms flourish in life‚ giving them the ability to reproduce more freely‚ and eat with less competition
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w w w Centre Number Candidate Number Name e tr .X m eP e ap .c rs om UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Level PHYSICS Paper 6 May/June 2004 45 minutes Candidates answer on the Question Paper. No Additional Materials are required. 9702/06 READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen in the spaces provided on the Question Paper
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Energy 1. A man climbs on to a wall that is 5 m high and gains 2200 J of potential energy. What is the mass of the man? Given: Formula: h = 5 m m = PE/gh PE = 2200 J Solution: m = 2200 J / (9.8 m/s2 x 5 m) m = 49 kg 2. Calculate the kinetic energy of a 500 kg car travelling at 50 m/s. Given: Formula: m = 500 kg KE = mv2/2 v = 50 m/s Solution: KE = 500 kg x (50 m/s)2 / 2 KE = 625 000 J Power 3. Riley climbs a flight of stairs in 3 minutes. If he
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SINKHOLES Methane Gas Hydrates Scientists at Cardiff University have discovered the presence of large concentrations of methane gas trapped in the ocean floor. This gas is due to dying and decomposing sea organisms‚ or serpentinization. The sediment contains bacteria that produce methane‚ which accumulates as super concentrated methane ice‚ called gas hydrates. The layer of ice traps the methane gas‚ and scientists are studying it as a potential energy source. What is methane? Methane
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