use of recorded sound in films was a technological achievement that would dramatically change the way audiences experience cinema. The transition from silent cinema affected many studios and filmmakers‚ who had to adapt to the new technology to prevent their careers from fading into obscurity. One filmmaker who was able to adapt to the changing industry was director Fritz Lang. The Austrian born director‚ whose career began in post-war Germany in 1919‚ made the transition to sound in 1931 with the
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Lab 4 – Energy Sources and Alternative Energy Experiment 1: The Effects of Coal Mining Table 1: pH of Water Samples Water Sample Initial pH Final pH (24-48 hours) Pyrite 6.9 6 Activated Carbon 6.9 7 Water 6.9 6 POST LAB QUESTIONS 1. Develop hypotheses predicting the effect of pyrite and coal on the acidity of water? a. Pyrite hypothesis = it can contaminate water or dirt by increasing acidity levels. b. Coal hypothesis = can cause a problem with underground mining because it can cause the river
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WORKSHEET PHYSICS SECTION A Q1. Suppose you are in a dark room. Can you see the objects in the room? Can you see the objects outside the room? Explain your answer Q2. Write the two laws of reflection. Q3. Write two differences between diffused and regular reflection. Q4. Write whether in each case diffused or regular reflection takes place. a) Wood b) Polished surface c) Mirror d) Marble surface e) Chalk powder Q5. What is the angle of reflection if the angle between
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Lamia Doueihi 2/27/15 AP European History Newtonian Physics and Darwinian Biology on European Culture Sir Isaac Newton and Charles Darwin were both influential men who had impacted European culture during their respected eras‚ and in later eras. Newton was an English physicist and mathematician. During the Enlightenment‚ his Newtonian physics impacted European culture with his effects on science. Charles Darwin was an English naturalist and geologist. One of his greatest impacts on European culture
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CRASH TEST DUMMIES STUDENT REPORT Practical Report Grading Name: Emily Parker GRADE | A | B | C | D | E | PART A & B AIMS(*) | Formulation of questions explicitly linked to science knowledge | Formulation of questions informed by science knowledge | Formulation of questions that can be investigated scientifically | Statements of questions | Safe‚ directed use of equipment in given investigations | PART B METHOD(*) |
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This year in science‚ we were paired up in groups to build a car powered only by a rubber band. There was a lot of physics and thought put behind the planning of our car. The rubber band moved the car by storing up elastic potential energy which then turned into kinetic energy when released. Newton’s Laws of Motion also come in handy when thinking about how to keep the car moving. “An object in motion stays in motion.” There was also a lot of thought put into the wheels. We had to be aware of the
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ULTRASOUND PHYSICS Name Institution a) Calculate the Acoustic impedance of subcutaneous tissue‚ muscle and bone. Assume subcutaneous tissue has a density of 1060kg/m3 (Hedrick 2003)‚ muscle has a density of 1104kg/m3 (Madjor 2008) and bone has a density of 5065kg/m3 (Hedrick 2003). Give your answer in Mrayls. Please use speed of sound as 1540m/s for tissue‚ muscle and bone In ultrasound‚ Acoustic impedance (Z) is the quantity of measurement of resistance to sound when passing through a medium
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Velocity The word‚ velocity‚ originates from the Latin word‚ vēlōcitās‚ meaning swiftness or speed. Velocity is one of the basic words used in mathematics and physics and forms the basis for the more important formulae used in high level study of these subjects. According to the dictionary‚ the definition of velocity is the rate of change of position of an object. In simple words‚ velocity means the distance travelled by an object over some time divided by the time taken by the object to travel
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Required Vocabulary – IB 12 Higher Level Physics and Physical Measurement 1. Fundamental Units – seven basic units of the SI measurement system: kilogram‚ second‚ mole‚ meter‚ ampere‚ Kelvin‚ candela. 2. Derived Units – units that are combinations of fundamental units. These combinations may or may not have a separate name. (eg. 1 kg m/s2 = 1 N) 3. Accuracy - An indication of how close a measurement is to the accepted value (a measure of correctness). 4. Precision - An indication
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Candidate Name: Riddhi Chaknalwar Candidate Number: 001226038 May 1‚ 2012 ACCELERATION OF A FREE FALL
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