apart from the independent variable that we were measuring (weight). Step 2 was then repeated‚ changing the weight every time. We collected the data in a table. Variables These are the variables that are controlled. Controlled variables: - 1 metre distance Observer Trolley Angle of the incline Independent variable: - Mass added to the trolley (g) Dependent variable: - Velocity of trolley (m/s) Momentum of trolley (kg m/s) Results Mass (kg) Distance (m) Time (seconds) Velocity
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1) A 4-kg mass moving with speed 2 m/s‚ and a 2-kg mass moving with a speed of 4 m/s‚ are gliding over a horizontal frictionless surface. Both objects encounter the same horizontal force‚ which directly opposes their motion‚ and are brought to rest by it. Which statement best describes their respective stopping distances? (A) The 4-kg mass travels twice as far as the 2-kg mass before stopping. (B) The 2-kg mass travels twice as far as the 4-kg mass before stopping. (C) Both masses travel the
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MINISTRY OF EDUCATION FIJI SEVENTH FORM EXAMINATION – 2004 EXAMINER’S REPORT PHYSICS GENERAL COMMENTS PAPER I The format for 2004 FSF Physics Examination paper has been similar to 2003 . The examination paper on the whole had tested knowledge and concepts expected to be learned by seventh form physics students in Fiji‚ particularly : - familiarity with basic concepts ; - problem solving techniques ; - knowledge of practical situations encountered during practical lessons
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Physics C-110 Module 1 Chapter 1 1. What is science? Science is a body of knowledge that is ever changing. It is made up of not only facts but also theories that are made up of well-tested hypotheses. 2. Distinguish among the scientific fact‚ hypothesis‚ law and theory As stated above‚ a theory is made up of well-tested hypotheses‚ which in themselves are well educated guesses yet to be proven. A fact is something that can change over time even though it was agreed upon by knowledgeable
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English III AP - AP( English Language and Composition Course Overview The English III AP (or AP( English Language and Composition) course objectives are to help students become “skilled readers of prose written in a variety of periods‚ disciplines‚ and rhetorical contexts” and to help students become “skilled writers who compose for a variety of purposes” (The College Board‚ AP( English Course Description‚ May 2007‚ May 2008‚ p. 6). Students are expected to read critically‚ think analytically
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The Heart • What does it generate? • Why is that so important? • Found in the… • Apex points at… • Base points at… • Sits atop the… • Medial to… • Anterior to the… • Posterior to the… Fibrous Pericardium • Made of… • Encloses. • Stabilizes. • Prevents... Serous Pericardium • Deep to the… • 2 layers • Parietal pericardium • Visceral pericardium • Pericardial cavity. 3 Layers of the Heart Wall • Epicardium • Myocardium • Endocardium. Heart Chambers
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The word “free” is something everyone likes to hear because it means they can receive what they want without having to pay to obtain it therefore profiting. However‚ nothing is truly free because if one individual doesn’t pay then another will have to in his place. It’s how our world works‚ as well as the economy! The same goes for college‚ everyone one would agree that free college sounds amazing! With free college all those loans could be avoided leading to a happier‚ debt free life‚ right? While
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Exercise 4.2 Solve the following equations: 1. x 4 − 6 x 2 + 8 = 0 Solution: x4 − 6 x2 + 8 = 0 Let y = x 2 and y 2 = x 4 The above equation becomes: y 2 − 6 y + 8 = 0 y2 − 6 y + 8 = 0 y2 − 4 y − 2 y + 8 = 0 y ( y − 4) − 2( y − 4) = 0 ( y − 2)( y − 4) = 0 y − 2 = 0 and y − 4 = 0 y=2 y=4 2 As‚ y = x x2 = 2 x2 = 4 x = ±2 x=± 2 solution set = { 2‚ − 2‚ 2‚ −2} 2. x −2 − 10 = 3 x−1 Solution: x −2 − 10 = 3 x −1 x −2 − 3 x −1 − 10 = 0 Let y = x −1 and y 2 = x −2 The above equation becomes:
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Joelle Baker Com/220 October 2nd 2010 Cassandra Shellhorn Community College- Free or Not Free? Life is full of obstacles which starts out on an easy level but only becomes harder the further on down. Because of the obstacle turning meticulous‚ people eventually crave to attend college to pursue an education; young adult‚ middle aged‚ or over middle aged adults. The reason people are inspired to attend college is that
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physicsclassroom.com/mmedia/circmot/rcd.cfm What is ‘g force’ in physics? G‚ in physics‚ a symbol relating to gravity. A capital G indicates the gravitational constant‚ as explained in the article GRAVITATION. A lower-case g stands for the acceleration imparted by gravity at the earth’s surface. An acceleration of 1 g is 32. 1 feet per second per second (9.8 m/s2). Fliers and astronauts may experience accelerations many times larger than 1 g. These accelerations are usually expressed in multiples of
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