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Solving force problems
Solving force problems

... and points to the inside of the curve with magnitude arad = r ...
Study Guide Answers
Study Guide Answers

Over head 2
Over head 2

... the card to accelerate horizontally. • Why did this happen? The force was applied to the card only – Inertia kept the coin from moving. • Do you think it would be different if you pulled it slowly? It should go with the card everytime. ...
Force (or free-body) diagrams
Force (or free-body) diagrams

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Unit 2a Force and Motion Study Guide Label the following with the
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Newton`s Laws of Motion - Neshaminy School District

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True or False - Hauserphysics

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2.1 The Fundamental Concepts and Principles of Mechanics

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CH-5 Lecture - Chemistry at Winthrop University

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Preview of Today`s Class

Newton`s Laws 1.The First Law: Force and Inertia 2.The Second Law
Newton`s Laws 1.The First Law: Force and Inertia 2.The Second Law

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Independent Notes

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Forces File

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Modified Newtonian dynamics



In physics, modified Newtonian dynamics (MOND) is a theory that proposes a modification of Newton's laws to account for observed properties of galaxies. Created in 1983 by Israeli physicist Mordehai Milgrom, the theory's original motivation was to explain the fact that the velocities of stars in galaxies were observed to be larger than expected based on Newtonian mechanics. Milgrom noted that this discrepancy could be resolved if the gravitational force experienced by a star in the outer regions of a galaxy was proportional to the square of its centripetal acceleration (as opposed to the centripetal acceleration itself, as in Newton's Second Law), or alternatively if gravitational force came to vary inversely with radius (as opposed to the inverse square of the radius, as in Newton's Law of Gravity). In MOND, violation of Newton's Laws occurs at extremely small accelerations, characteristic of galaxies yet far below anything typically encountered in the Solar System or on Earth.MOND is an example of a class of theories known as modified gravity, and is an alternative to the hypothesis that the dynamics of galaxies are determined by massive, invisible dark matter halos. Since Milgrom's original proposal, MOND has successfully predicted a variety of galactic phenomena that are difficult to understand from a dark matter perspective. However, MOND and its generalisations do not adequately account for observed properties of galaxy clusters, and no satisfactory cosmological model has been constructed from the theory.
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