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Gravitation PPT
Gravitation PPT

... You can treat the earth as a point mass with its mass being at the center if an object is on its surface The earth is actually not uniform The earth is not a sphere The earth is rotating ...
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Unit 8 Student Notes

Force Equals Mass Times Acceleration
Force Equals Mass Times Acceleration

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1 - Newton`s laws - Ms. Gamm

... Newton’s third law simply says that forces come in pairs. You push on a wall and the wall pushes on you. We call these action/reaction force pairs. One of the skills most people master is walking. We rarely think about the act of walking – you don’t have to concentrate on it, it’s just something tha ...
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W = mg

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Chap2_motion_revised

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Newton`s First Law of Motion Inertia

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gravitational potential energy

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Name - cloudfront.net

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Physics 2414

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Chapter Summary

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Upcoming due dates

Math 1321 Week 14 Lab Worksheet Due Thursday 04/18
Math 1321 Week 14 Lab Worksheet Due Thursday 04/18

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... "If these two forces are equal and opposite, they will cancel, so that the net force is zero, right?", argues Dobbin. "Well, I suppose so," stammers Farmer Brown. "The net force is always the important thing. If the net force is zero, then Newton's Second Law (and Newton's First Law, too) says that ...
Forces and Motion
Forces and Motion

... the positive protons from repelling each other and destroying the atom – Strong nuclear force acts only on neutrons and protons in a nucleus – holds them together. Acts at a longer range than weak nuclear forces. – Weak nuclear force acts only over a short range ...
Introduction Worksheet 1
Introduction Worksheet 1

... a) How much work does the frictional resistance of the floor do on the block? b) If the reduction in velocity occurred over a distance of 10 m, what was the force of friction acting on the block? c) What impulse was delivered to the block? ...
Galileo Galili Essay, Research Paper email: triaxxxxx@aol
Galileo Galili Essay, Research Paper email: triaxxxxx@aol

... pendulum kept going. He that the average number of swings for the cork bob was less than the average number of swing for the lead bob.Galileo claimed that the pendulum period was different from the height at which they are released in Two New Sciences. To get to his conclusion he suspended two pend ...
Unit 4
Unit 4

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Newton`s Laws

... “Natural motion” occurred when an object sought to return to its “natural place” after being moved from it by some type of “violent motion.” The natural state of an object was to be “at rest” in its “natural place.” To keep an object moving would require a force. ...
Newton`s Laws
Newton`s Laws

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Newton`s Laws of Motion Notes

Gravity and Gravitational Potential Energy
Gravity and Gravitational Potential Energy

15.2 Forces study guide KEY
15.2 Forces study guide KEY

... A push or pull, some are contact forces (pushing a cart) and others are non-contact forces (electric force, magnetic force, gravity) Newton The unit used to measure force. Named after Isaac Newton. Net Force The combination of all the forces acting on an object, the TOTAL force on an object. Balance ...
Lecture 8 (Feb 8) - West Virginia University
Lecture 8 (Feb 8) - West Virginia University

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Gravity

Gravity or gravitation is a natural phenomenon by which all things with mass are brought towards (or 'gravitate' towards) one another including stars, planets, galaxies and even light and sub-atomic particles. Gravity is responsible for the complexity in the universe, by creating spheres of hydrogen, igniting them under pressure to form stars and grouping them into galaxies. Without gravity, the universe would be an uncomplicated one, existing without thermal energy and composed only of equally spaced particles. On Earth, gravity gives weight to physical objects and causes the tides. Gravity has an infinite range, and it cannot be absorbed, transformed, or shielded against.Gravity is most accurately described by the general theory of relativity (proposed by Albert Einstein in 1915) which describes gravity, not as a force, but as a consequence of the curvature of spacetime caused by the uneven distribution of mass/energy; and resulting in time dilation, where time lapses more slowly in strong gravitation. However, for most applications, gravity is well approximated by Newton's law of universal gravitation, which postulates that gravity is a force where two bodies of mass are directly drawn (or 'attracted') to each other according to a mathematical relationship, where the attractive force is proportional to the product of their masses and inversely proportional to the square of the distance between them. This is considered to occur over an infinite range, such that all bodies (with mass) in the universe are drawn to each other no matter how far they are apart.Gravity is the weakest of the four fundamental interactions of nature. The gravitational attraction is approximately 10−38 times the strength of the strong force (i.e. gravity is 38 orders of magnitude weaker), 10−36 times the strength of the electromagnetic force, and 10−29 times the strength of the weak force. As a consequence, gravity has a negligible influence on the behavior of sub-atomic particles, and plays no role in determining the internal properties of everyday matter (but see quantum gravity). On the other hand, gravity is the dominant force at the macroscopic scale, that is the cause of the formation, shape, and trajectory (orbit) of astronomical bodies, including those of asteroids, comets, planets, stars, and galaxies. It is responsible for causing the Earth and the other planets to orbit the Sun; for causing the Moon to orbit the Earth; for the formation of tides; for natural convection, by which fluid flow occurs under the influence of a density gradient and gravity; for heating the interiors of forming stars and planets to very high temperatures; for solar system, galaxy, stellar formation and evolution; and for various other phenomena observed on Earth and throughout the universe.In pursuit of a theory of everything, the merging of general relativity and quantum mechanics (or quantum field theory) into a more general theory of quantum gravity has become an area of research.
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