sdsdgdfgfshfdhfdksjflskkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk- kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk- kkkkkkkkkkkkkkkkkkkkkkkkkk"Jostle" redirects here. For the racehorse‚ see Jostle (horse). A collision is an isolated event in which two or more moving bodies (colliding bodies) exert forces on each other for a relatively short time. Although the most common colloquial use of the word "collision" refers to accidents in which two or more objects collide‚ the scientific use
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yoyo is allowed to fall‚ the potential energy turns into kinetic energy giving the yoyo linear momentum and angular momentum. Since the yoyo is falling straight towards the ground‚ this is called the linear momentum. The linear momentum can be calculated using a simple formula p=mv Momentum = mass * velocity. As the spring unwinds‚ the spool spins which creates angular momentum. Definition of angular momentum is “a quantity associated with how an object moves around a
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surface a puck of mass m initially at speed u collides head-on (without rotation) with a stationary puck of mass M. Find the velocities of both puck after the collision if: i) the collision is fully elastic ii) the collision if fully inelastic. i) momentum: kinetic energy: mu = mv+MV (+ve in direction of initial u) 1 /2 m u2 = 1/2 m v2 + 1/2 M V2 2 eqns in 2 unknowns: V = (u - v) m/M substitute in K eqn: u2 = v2 + (M/m) V2 = v2 + (M/m) (u - v)2 (m/M)2 = v2 + (u - v)2 (m/M) let ρ = (m/M) ⇒ v2 (1
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Basics of Fluid Mechanics Genick Bar–Meir‚ Ph. D. 2729 West Jarvis Ave Chicago‚ IL 60645-1335 email:barmeir at gmail.com Copyright © 2010‚ 2009‚ 2008‚ 2007‚ and 2006 by Genick Bar-Meir See the file copying.fdl or copyright.tex for copying conditions. Version (0.2.4 March 2‚ 2010) ‘We are like dwarfs sitting on the shoulders of giants” from The Metalogicon by John in 1159 CONTENTS Nomenclature GNU Free Documentation License . . . . . . . . . . . . . . . . 1. APPLICABILITY AND DEFINITIONS
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I. Introduction Physics is the natural science that involves the study of matter and its motion through space and time‚ along with related concepts such as energy and force. More broadly‚ it is the general analysis of nature‚ conducted in order to understand how the universe behaves. Physics is one of the oldest academic disciplines‚ perhaps the oldest through its inclusion of astronomy. Over the last two millennia‚ physics was a part of natural philosophy along with chemistry‚ certain branches
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Introductory Physics I Elementary Mechanics by Robert G. Brown Duke University Physics Department Durham‚ NC 27708-0305 rgb@phy.duke.edu Copyright Notice Copyright Robert G. Brown 1993‚ 2007‚ 2013 Notice This physics textbook is designed to support my personal teaching activities at Duke University‚ in particular teaching its Physics 141/142‚ 151/152‚ or 161/162 series (Introductory Physics for life science majors‚ engineers‚ or potential physics majors‚ respectively). It is freely
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STARWARD ACADEMY WORKSHEET # 2 MOMENTUM DUE: 1. Calculate the momentum of an object if: (a) its mass is 4.0 kg and its velocity is 8.0 ms-1 (b) its mass is 500 kg and its velocity is 3.0 kms-1 (c) a force of 20 N is applied to it for 6.0 s and it moves from rest (d) its mass is 2.0 kg and it falls from rest for 10 s (assuming g = 10 ms-1 or 10 Nkg-1). 2. A car of 1200 kg is pushed along a level road by two men. If they use a force of 800 N and frictional forces acting against
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articles focus on anomalies that should not hold true in an efficient market and other articles try to dispel those anomalies. Market efficiency anomalies such as momentum‚ reversal effects‚ book-to-market effects and post-earnings-announcement drifts have contributed to the argument against the idea of market efficiency. Momentum Jegadeesh and Titman 1993 aimed to investigate the returns on stocks that had previously performed well (winners) and sell stocks that had previously performed
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1. What is a momentum investment strategy? Momentum is the phenomenon that stocks which have performed well in the past will continue to perform well in the future‚ and that stocks which have performed poorly will continue to perform poorly. Therefore a momentum investment strategy is to invest in short term portfolios that have high returns in the past‚ and to short those with low returns over the same period. 2. Analyze these portfolios. By analyzing monthly returns of all 10 portfolios from
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technological momentum as a point between two opposite ideas; social constructivism and technological determinism. This raises questions as to what exactly the relationship is between technological momentum and soft determinism. Both ideas deal with the effect society has on technology and the effect that technology has on society. I will argue that while both ideas seem to be the same‚ there are important distinctions to make between the two. One is that Hughes’s idea of technological momentum is time
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