then and now. Whether man likes it or not‚ he encounters and uses projectile in his everyday life. Our hunting ancestors threw stones and spears on animals to kill them for their food. In today’s sports‚ balls follow projectile motion such as when a basketball player shoots the ball into the hoop‚ a golfer or a baseball player hitting the ball‚ a tennis player lobbing the ball‚ a javelin thrower‚ a discus thrower or a shot putter trying to throw their objects as far as they can
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PHYSICS WORK SHEET - 2 CLASS – IX LESSON : MOTION 1. Analyze the following situation and answer the following questions. A circular track has a circumference of 3140m with AB as one of its diameter. A man riding a scooter moves from A to B along the circular path with a uniform speed of 10 m/s. a) Distance covered by the man b) Displacement of the man c) Time taken by the man in reaching from A to B. 2. A car starting from rest moves with a uniform acceleration of 0.1 m/s2 for 2 minutes. Find the
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STRENGTHENING OF METALS There are 4 major ways to strengthen metals‚ and all work because they make dislocation motion more difficult. They also reduce the ductility: 1) Cold work (Strain Hardening) 2) Reduce grain size (Strengthening by Grain Size Reduction) 3) Add other elements in solid solution (Solid Solution Strengthening) 4) Add second phase particles (Precipitation or Age Hardening) • These mechanisms may be combined. • For example‚ the world’s strongest structural material (with
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BACKGROUND A. Babylonians They recorded eclipses and they were able to predict future eclipses. They named the twelve divisions of the Zodiacs‚ divided the northern sky into constellation and gave their present names. Their priest recorded planetary motions especially those of Venus‚ geometry and mathematics were highly developed by these people. There were evidences of multiplication tables and tables of square and cubes. They created standards for measuring length and weight‚ as well as time. B
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DERIVATION OF FORMULAS constant acceleration In order to be accurate‚ the title of this section should be "One Dimensional Equations of Motion for Constant Acceleration". Given that such a title would be a stylistic nightmare‚ let me begin this section with the following qualification. The equations of motion are valid only when acceleration is constant and motion is constrained to a straight line. Given that we live in a three dimensional universe in which the only constant is change‚ you may be
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Formative Assignment Including PSAfor class IX PHYSICS 1. Motion is relative or absolute? Give reason. 2. Name the physical quantity that essentially changes as a body moves. 3. Is displacement or distance independent of path? How? 4. Give example of a motion in which distance is covered but there is no displacement. 5. Give one example of motion where‚ distance and displacement are same. 6. When moving car returns to the same point what will be the ratio of
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Describing Motion with Words Scalars and Vectors Distance and Displacement Speed Velocity Acceleration Kinematics is the science of describing the motion of objects using words‚ diagrams‚ numbers‚ graphs‚ and equations. The goal of any study of kinematics is to develop sophisticated models which serve in describing (and ultimately‚ explaining) the motion of real-world objects. Much of our lives are spent in motion‚ travelling from one place to another. We measure motion by the rate
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life. * Physical time in the cinema can be distorted through slow motion‚ accelerated motion‚ reverse motion‚ and stopped motion. * Slow motion happens when the camera takes pictures faster than the projector can show them on the screen. * Accelerated motion occurs when the camera takes pictures slower than the projector can run them on the screen. * Reserve motion conveys an undoing of time * Stopped motion is not often used. Instead of stopping the action of an otherwise moving
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It is isotropic up to 0‚001% - the standard deviation of temperature is approximately 18 IWC. The heat death is a possible final thermodynamic state of the universe‚ in which it has "run down" to a state of no thermodynamic free energy to sustain motion or life. In physical terms‚ it has reached maximum entropy. The hypothesis of a universal heat death stems from the 1850s ideas of William Thomson‚ 1st Baron Kelvin who extrapolated the theory of heat views of mechanical energy loss in nature‚ as
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Lecture Notes on Monte Carlo Methods Fall Semester‚ 2005 Courant Institute of Mathematical Sciences‚ NYU Jonathan Goodman‚ goodman@cims.nyu.edu Chapter 2: Simple Sampling of Gaussians. created August 26‚ 2005 Generating univariate or multivariate Gaussian random variables is simple and fast. There should be no reason ever to use approximate methods based‚ for example‚ on the Central limit theorem. 1 Box Muller It would be nice to get a standard normal from a standard uniform by
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