Circular Motion Uniform circular motion is the movement of an object or particle trajectory at a constant speed around a circle with a fixed radius. The fixed radius‚ r‚ is the position of an object in uniform or circular motion relative to to the center of the circle. The length of the position vector of the circle does not change but its direction does as the object follows its circular path. In order to find the object’s velocity‚ one needs to find its displacement vector over the specific
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CTS Placement Paper January‚ 2010 (Reasoning Ability) REASONING section (20 Q’s - 20 mins) Directions for Questions 1-4: In each questions below are given two statements followed by two conclusions numbered I and II. You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. read the conclusion and then decide which of the given conclusions logically follows from the two given statements‚ disregarding commonly known facts. Give answer: (A)
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Uniform Circular Motion – a constant motion along a circle; the unfirom motion of a body along a circle Frequency (f) – the number of cycles or revolutions completed by the same object in a given time; may be expressed as per second‚ per minute‚ per hour‚ per year‚ etc.; standard unit is revolutions per second (rev/s) Period (T) – the time it takes for an object to make one complete revolution; may be expressed in seconds‚ minutes‚ hours‚ years‚ etc.; standard unit is seconds per revolution
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Circular Motion and Gravitation Circular motion is everywhere‚ from atoms to galaxies‚ from flagella to Ferris wheels. Two terms are frequently used to describe such motion. In general‚ we say that an object rotates when the axis of rotation lies within the body‚ and that it revolves when the axis is outside it. Thus‚ the Earth rotates on its axis and revolves about the Sun. When a body rotates on its axis‚ all the particles of the body revolve – that is‚ they move in circular paths about
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Title: Uniform Circular Motion Objective: To investigate the relationship between FnetT² and radius Proposed Hypothesis: FnetT² is directly proportional to the radius Manipulated variable: Radius of the circular motion Responding variable: The time taken for 20 rotations Controlled variables: The mass of the rubber stopper‚ the mass of the weight hanger‚ the total weight of the slotted weight‚ the length of the PVC tube Apparatus and Materials: rubber stopper‚ stopwatch‚ weight
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Circular Saw- As changes in the economics of the industry occurred‚ developments in powered machinery began that had an impact on both preparing and assembling. In 1805‚ Brunel took out a patent for large circular saws particularly associated with veneer cuttingand in 1807 developed the saw further in association with block-making machinery. However‚ one of the most important developments was not on this scale at all. The small circular saw of up to seven inches diameter‚ often operated by a treadle
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II Uniform Circular Motion A. Nomenclature 1. Speed – magnitude of an objects rate of motion (no direction‚ scalar quantity) 2. Velocity – speed and direction of an objects motion (vector‚ mag & direction) 3. If a car’s speed is constant but direction is changing‚ velocity is changing. 4. 2 ways to change velocity (change speed or change direction). 5. acceleration – change in speed over time (vector quantity) TWO types; a. Linear acceleration – speed
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The Nature of Reasoning What is Reasoning? a mental act whereby starting with several judgments which we relate to one another. the process which uses arguments‚ statements‚ premises and axioms to define weather a statement is true or false‚ resulting in a logical or illogical reasoning. the process of using a rational‚ systematic series of steps based on sound mathematical procedures and given statements to arrive at a conclusion. the cognitive skills with which we reach
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Nosich’s “The Elements of Reasoning” and Elder’s “The Standards for Thinking” both focus on various techniques people can adopt to become better critical thinkers. According to Nosich‚ two conditions must exist to be considered critical thinking: the thinking must be reflective and it must meet high standards. These two conditions lead us into the eights elements of reasoning presented in the readings. The first element focused on is “Purpose‚” which includes objectives‚ goals‚ your desired outcome
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Legal Reasoning is a reasonable reasoning before the decision had been made. Legal reasoning required us to consider the criteria beyond those imposed by the strict necessity of logic. It has followed certain criteria or rules which applied in practical reasoning. For an example‚ a judge has to give judgment by following the precedent case and Federal Constitution‚ legislators have to predict the impact of their laws before amendment whereby following the two-third majority of Parliament and lawyers
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