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Newton's law of motion ppt







































Watch this video to understand one of the most revolutionary laws in Physics: Newton's First Law of Motion .... Newton's first law of motion. 1. Gives a definition of (zero) force. 2. Defines an inertial frame. Inertial frame: If the relative velocity between the two reference.. The Lennard-Jones potential is an intermolecular pair potential. Among the intermolecular ... between two particles based on the outlined principles. Following Newton's mechanics, the actual force F {\displaystyle F} F between two interacting .... Sir Isaac Newton (1643-1727) an English scientist and mathematician famous for his discovery of the law of gravity also discovered the three laws of motion. He .... Sir Isaac Newton (1643-1727) an English scientist and mathematician famous for his discovery of the law of gravity also discovered the three laws of motion. He.. Write down the definition of Newton's Three Laws in your own words. Which Law of Motion applies to the following? The more force you apply to a cart the faster it​ .... Equilibrium & Newton's 2nd Law of Motion ... Newton's 1st Law - If there is no net force acting on a body, then it will continue in it's state of constant velocity .... To truly understand and prove the validity of Newton's law of Cooling” ... Laws of Motion. Laws of ... Newton's Law of Cooling states that the rate of change of the.. What are the purpose of flaps? 4. What effects do spoilers have on an airplane? 5​. What is trim used for? 6.04 Laws and Forces. MTPs: Newton's Laws of Motion .... AP Physics - Chapter 4 Powerpoint 1. Chapter 4 Forces and Newton's Laws of Motion 2. 4.1 The Concepts of Force and Mass A force is a push or a pull. Arrows​ .... Kepler's three laws of planetary motion; Newton's three laws of motion and the law of gravitation. A little drama. Characters in the great drama. Claudius Ptolemy​ .... Came up with 3 Laws of Motion to explain the observations and analyses of Galileo and ... where ∑F is the net force measured in Newtons (N); m is mass (kg​) .... In simple terms, if any moving object in a circular path is constantly changing its direction means it is constantly accelerating. Using Newton's second law of motion, .... Inertia property of matter that resists a change in motion. An object with great mass has high inertia. Newton's 2nd Law. A. B. f = m x a. FA = 1000 kg x 0.05 m/s/​ .... Universal_gravitation. But it is a weak force on the human scale. Newton's Laws of Motion 1st Law – An object at rest will stay at rest, and an object in motion will .... Towards Newton's Second Law of Motion… (i) Acceleration is created by a net force. E.g. Kick a soccer ball: what forces acting, causing what motion?. Newton's Law of Universal Gravitation ... Newton realized that the force of attraction between two massive objects: ... The LoUG is an inverse-square law: ... To any observer inside this curved space-time, the object's motion would appear to be .... Before the box slides, static friction acts. But once it starts to slide, kinetic friction acts. Copyright © 2009 Pearson Education, Inc. Applications of Newton's Laws .... It includes the lesson (student and teacher versions of the PowerPoint) and a student lesson handout as a word document which follows the PowerPoint. L2 .... Chemistry, Biology, Physics PowerPoint template for create presentation. ... The template subjects range from Newton's laws to things in motion to physics .... Q. If the net force is 0 the object will ... answer choices. CHANGES motion. STAY the SAME, NOT .... Newtonian physics explains Kepler's laws in terms of more basic principles that apply equally to terrestrial and celestial motion. Newton's First Law Without Newton.. Section 1 Gravity and Motion. Section 2 Newton's Laws of Motion. Section 3 Momentum ... the motion of objects through air. •. The amount of air resistance acting .... Jun 30, 2021 — A presentation might consist of multiple slides that are exhibited one after the other. The presentation tool in MS Office is MS PowerPoint.. Force And Friction Ppt Worksheets & Teaching Resources Mar 31, 2016 · c. ... Draw Free-body diagrams and use Newton's laws of Motion to solve the following​ .... The Laws of Motion. Sir Isaac Newton. 1642 – 1727; Formulated basic laws of mechanics; Discovered Law of Universal Gravitation; Invented form of calculus .... Kepler's Laws of Planetary Motion. The orbits of ... Newton's laws of motions: the foundation of physics and the start for our understanding of orbits. Newton's .... Newton's Third Law. According to Newton's third law of motion, forces always act in equal but opposite pairs. Action and Reaction. Another way of saying this *is .... Forces and Newtons Laws Powerpoint-1.ppt. Download Forces and Newtons Laws Powerpoint-1.ppt (1.4 MB). Locale: en .... Newton's first law of motion, the state of motion of an object does not change as long as the net force acting on the object is zero. A Unless an unbalanced force .... Newton's Law of Gravitation Equation. F=Gm1m2/r2. Newton's Three Laws of Motion. An object at rest stays at rest, and an object in uniform motion remains in​ .... Newton's Second Law of Motion. The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. F = ma.. CHAPTER 4: NEWTON'S FIRST LAW OF MOTION-. MT W R 3: 00pm - 4: 00pm (​or by a ppt. Palm Sunday. Creative Quotations from Thomas Paine. They had .... 3 Construct explanations for the relationship between the mass of an object and the concept of inertia (Newton's First Law of Motion). 8.P.2A.4Analyze and .... Forces can create changes in motion (acceleration or deceleration). Definition of a Force. A force is a ... Newton's 1ST Law of Motion. 1st Laws States that an .... Inertia is the tendency of an object to resist its change in motion. Lesson 3: Newton's Second Law. According to Newton's 2nd Law, an objects .... Newton. (1642-1727). Newton's Laws of Motion. 1st Law: no net force no acceleration; no acceleration no change in motion; Objects at rest will remain at .... Newton's Laws of Motion. Review. Background. Sir Isaac Newton (1643-1727) an English scientist and mathematician famous for his discovery of the law of .... Newton's Laws of Motion Lecture 6. Does this have anything to do with cookies? Nope, not fig newtons…Sir Isaac Newton; A little bit stuffy, bad hair, but quite an .... No information is available for this page.Learn why. Newtons. Mass. A massive object is in motion, more force must be applied to accelerate more quickly ... What does a Newton measure? ... Law of Inertia.. ... a new unit of study. BUY NOW Force and Motion PowerPoint and Notes Bundle ... -Newton's 2nd Law - Law of Acceleration with examples -Newton's 3rd Law .... Apr 15, 2013 — Law of Inertia II. F=ma III. Action-Reaction Newton's laws of motion are three physical laws which provide relationships between the forces acting .... Newton's Laws. Forces and Motion. Laws of Motion. formulated by Issac Newton in the late 17th century; written as a way to relate force and motion; Newton .... The Laws of Motion …or, Newtonian mechanics. ISP 209 - 2A. 7/10/06. 3. Isaac Newton. Newton believed that mathematics can describe nature, accurately.. Émilie Du Châtelet, Mary Somerville and the Newtonian Revolution Robyn Arianrhod ... p 402; hard atoms, 'conservation of mass', p400; motion not conserved, p 398, ... The range of applicability of the inverse-square law is still being debated; ... at http://www.astro.princeton.edu/~tremaine/alex/lecture1. ppt; Sansottera et al.. University Physics I: Lecture Notes; Master Equations I: essential equations: essential equations. CHAPTER 5: NEWTON'S 2ND LAW OF MOTION-. Useful .... Sep 20, 2020 — Newton's laws of motion; Newton's third law: action-reaction pairs. Life! Contact forces! Normal forces! Friction! Fundamental Forces of Nature.. Powerpoint presentations on a huge range of physics topics. Mechanisms or ... Force.js. Sir Isaac Newton proposed three laws of motion in 1665. eAuditNet is .... Nov 19, 2007 — Concepts (PowerPoint summary) (download the PowerPoint) ... Newton's First Law on an Air Track - objects in motion stay in motion, objects at .... Seminar Topics for Mechanical Engineering with ppt (2021) Adaptive Cruise Control. ... Newton's second law of translational motion for a rigid body of (​constant) .... iRubric CX8337B: Student creates a PowerPoint presentation describing Newton's Second Law of Motion. The presentation must include a description of the law .... Understand how Newton's law of universal gravitation explains both the motion of falling objects and the orbits of satellites and planets. Understand how the .... Measure and calculate the magnitude of frictional forces and Newton's three Laws of Motion. Force and mass. Four Forces Known in the Universe.. Jul 27, 2020 — The rotational motion is used to rotate a crankshaft that is connected to ... The water jet system operates on the principle of Newton's Third Law .... Newton's. Laws of Motion. I. Law of Inertia. II. F=ma. III. Action-Reaction. While most people know what Newton's laws say, many people do not know what they​ .... No information is available for this page.Learn why. Among other accomplishments, Sir Isaac Newton (1642-1727) invented calculus, developed the laws of motion, and developed the law of gravitational attraction .... Cp 9 force and laws of motion for ix. Newton s third law of motion power point. Newton s laws of motion powerpoint presentation and studen. Ppt newtons 2nd law .... Chapter 5: Newton's Laws: Force and Motion. Chapter 5 Objectives. Describe how the law of inertia affects the motion of an object. Give an example of a system .... Newton's Second Law. “Law of Acceleration”. More about F = ma. The SI unit of force is the Newton. (Named in honor of Isaac Newton). 1 Newton of force is the .... Kepler's laws allowed the relative size of the solar system to be calculated, but not the actual ... Newton's First Law of Motion - objects resist acceleration. (Inertia​). Newton (1642–1727); today we call them Newton's laws of motion. The first law states that when the net force on a body is zero, its motion doesn't change. The.. Isaac Newton formulated three laws to describe the fundamental properties of physical reality. NEWTON'S THREE LAWS OF MOTION. LAW #1: A body remains​ .... NEWTON'S LAWS OF MOTION. There are three of them. They explain the motion of an object as resulting from the forces acting on the object. What is a force?. A short PowerPoint® presentation is provided, including two example problems ... Apply Newton's second law of motion. Describe the effect of forces on motion.. PISD PowerPoint Lessons. Developed By. Lori More, Park Crest Middle School ... Section 2: Newton's Laws of Motion. Chapter 5: Work and Machines (Focus on .... Newton's first law – Powerpoint. Newton's second law – Powerpoint. Problems – Powerpoint. Resolving and slopes – Powerpoint. Friction – Powerpoint.. TAKS Objective 5. Motion , Forces. and Energy. Energy. Is defined as the ability to do work. Mechanical energy has two. types: Kinetic (Energy of Motion) and.. Newton's Second Law of Motion. Page 356-362. Force and Acceleration. Force is a push or a pull. Acceleration is when the motion of an object changes.. Motion Mania Motion Mania ( cont ) Welcome Begin the event by ... motionhome.pdf ) • Motion Mania PowerPoint presentation ( motion.ppt ) ( optional ) see bottom of each activity for specific materials list . ... Activity 3 : Newton's Second Law.. Newton's First Law of Motion | #aumsum #kids #science #education #children. Newton's First Law of Motion . Sir Issac Newton was one of the greatest influential​ .... Results 1 - 24 of 65 — Introduce Newton's Laws of Motion to your students with this PowerPoint presentation. This resource includes a 14 slide PowerPoint .... Jan 30, 2013 - Pete's PowerPoint Station is your destination for free PowerPoint presentations for kids and teachers about Newton's Laws of Motion, and so .... The acceleration is directly proportional to the net force, and inversely proportional to the mass. Newton's 2nd Law of Motion. NEWTON'S LAWS OF MOTION.. Motion. Forces. Energy & Momentum Conservation. Circular Motion. Gravity ... Vector addition and dot product, descriptions of motion, Newton's 3 laws, Friction.. Newton's Laws of Motion. When a rocket lifts off it is because thrust exceeds the weight that keeps it in place. This reflects Newton's First Law of Motion, which .... Every object continues in its state of rest, or of uniform velocity in a straight line, as long as no net force acts on it. Page 7. 4-2 Newton's First Law of Motion. Inertial .... “Law of Inertia”. Sir Isaac Newton. 1687- An object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted on by an outside force .... law of conservation of mass and energy ppt, energy to develop arguments that energy can transform from one ... 6S.1.2 Newton's Second Law of Motion W-26.. Newton's First Law An object at rest will remain at rest and an object that is moving at constant velocity will continue moving at constant velocity unless acted​ .... Newton's 2nd Law of Motion. Force and Acceleration. Newton 2 Slide 2. Mass and Acceleration. Mass resists acceleration, this is the principle of inertia. We call​ .... Unit 2 - Ch 4 - Lecture Notes - Newton's Laws - 04_Lecture.ppt (4.4 MBs); Unit ... Notes - 2D Motion - Unit 1 Ch 3 - Projectile Motion Lecture Notes.ppt (4.2 MBs) .... The definition of Newton's second law is: When an object is acted on by an outside force, the strength of .... A power point introducing Newton's Laws of Motion with examples. Ideal to be used as part of a lesson on the IWB. Suitable for Post 16 M1 students.. What makes and airplane fly? Ingredients for Flight. Bernoulli's Principle; Newton's Laws of Motion; Inertia; Energy; Velocity and Acceleration; Three Dimensional .... Newton's Laws of Motion. A Look at Newton's FIRST Law. Essential Questions. Who was Sir Isaac Newton? What is the first Laws of Motion? How do Newton's .... Kinematics of Uniform Circular Motion; Dynamics of Uniform Circular Motion; Highway ... Nonuniform Circular Motion; Newton's Law of Universal Gravitation.. Newton's first law of motion contains the phrase "no net force." What does this mean? The net force is the vector sum of all the individual forces acting on an object.. LAW #2: Newton's Laws of Motion: Student NOTES ppt SLIDES 11-16. Newton's 2nd Law demo write up sheet. * Rolling objects of different masses 2 min.. In the absence of a net force, an object moves with constant velocity. Second Law of Motion. Force = mass acceleration,. or,. F = m .... High School Vocabulary: Newton's Laws of Motion. List of Targeted Vocabulary ... Teacher PPT. Week 2-3. New vocab: ... Teacher PPT. Week 4. New vocab: .... Newton's second law of motion states: The net force on an object equals the product of the mass and the acceleration of the object. The direction of the force is .... How did ancient astronomers explain the motions of the planets? ... Called Newton's Laws of Motion, they apply to the motions of objects on Earth as well as in .... Physical Science 1 Chapter 3 2 1 ST LAW OF MOTION Law of Inertia: • A ... But you can Integrated Science: Contact by e-mail -> Powerpoint Presentations. ... How do Newton's laws explain why the scientists could expect this to happen?. Newton observed the planets, whose motion seemed to suggest the following formula, known as Newton's Law of Universal Gravitation: Acceleration due to .... ppt: File Size: 873 kb: File Type: ppt: Download File. NEWTONS LAWS OF MOTION. Some tips:1. Free Rotational Motion PowerPoint Templates. 2.4 - Graphing .... Apply Newton's Third Law to design a solution to a problem involving the motion of two colliding objects. ... Apr 15, 2013 · Force and Motion Review ppt 1.. Sir Isaac Newton (1642-1727) an English scientist and mathematician famous for his discovery of the law of gravity also discovered the three laws of motion. Today​ .... ‪Forces and Motion: Basics‬ ‪Net Force‬ ‪Motion‬ ‪Friction‬ ‪Acceleration‬. ‪Forces and Motion: Basics‬ ‪Net Force‬ ‪Motion‬ ‪Friction‬ ‪Acceleration‬. m.. with Newtons Laws of Motion, Friction, Aerodynamics, Potential and Kinetic Energy, Speed, Velocity, Acceleration, Work, Machines, Catapults, Trajectory, Force,. Newton's law 1 (static equilibrium); Newton's law 3 (forces come in pairs); describing motion as constant speed or constant acceleration. equations of 2 kinds: .... Explore more than 1416 'Newtons Laws Of Motion' resources for teachers, parents and pupils as well as ... KS2 All About Sir Isaac Newton for Kids - PowerPoint.. Demo 02-15 Tablecloth JerkNewton's First Law (4 of 4)Demo 02-16 Eggs and Pizza PanDemo 02-17 Pencil and Plywood4.3 Newton's Second Law of Motion: .... What kind of motion would create these position-time graphs? ... Before discussing Newton's laws you need to know some basic information about force.. 1. Physics 103 – Introduction to Physics I. Motion. Forces. Energy. 2. First ... Newton's “Laws” of Motion ... We write Newton's 2nd “Law” in mathematical form: 41.. Isaac Newton. Born in England in 1642; Invented calculus in early twenties; Finally published work in gravity in 1687. The Principia. Newton's Laws of Motion.. What is Newton's third law of motion? What is needed for an object to have a large momentum? How is momentum conserved? When this bumper car. collides​ .... All laws in continuum mechanics depart from a CV analysis (i. ppt Author: pjh ... Leonhard Euler (1707-1783) Euler's equation of acceleration or motion. ... The main equation required for this is Newton's second law for nonaccelerating bodies, .... Isaac Newton was the first person to hypothesize that the force that pulls an apple to the ... Friction is a force that opposes motion. ... Newton's First Law of Motion.. CHAPTER 5: NEWTON'S 2ND LAW OF MOTION-. Physics Lesson Plans. SCIENTIFIC METHOD. Concise explanations are given along with diagrams and​ .... Newton's laws pertain to the motion of massive bodies in an inertial reference frame, sometimes called a Newtonian reference frame, although Newton himself​ .... Unbalanced forces acting on an object cause the object to accelerate. 6.1 Force Causes Acceleration. 6 Newton's Second Law of Motion–Force and Acceleration.. In 1686 he presented his three laws of motion. Newton's Laws Law of Inertia. A body will maintain a state of rest or constant velocity unless acted on by an external .... An object which moves to the right and slows down has a leftward acceleration. Biomechanics. Newton's Laws of Motion in Sport. Second Law The acceleration of .... Aug 6, 2014 — Aristotle, Galileo and Newton and Newton's Laws of Motion. Chapter 3.1-3.6 Chapter 6.1-6.3 Chapter 7.1-7.4. ARISTOTLE. 384 BC – 322 BC .... Which is why WE wear SEATBELTS!! Newton's 3 Laws of Motion. 2nd Law of Motion: When a force acts (pushes or pulls) on an .... Free Issac Newton PowerPoint Template is another scientific hero of history. The laws of motion and gravity in physics presented by him have established the .... Newtons 3rd law ppt.pptx, 2.65 MB; (Last Modified on August 30, 2020). Leavelle McCampbell Middle. 1120 Weldon Way. Graniteville, SC 29829. Phone: .... flight experiments. 15. OHIO STATE UNIVERSITY EXTENSION. Newton's Discoveries: Gravity and Laws of Motion. 1687—Englishman Sir Isaac Newton .... Newton. +.. r is distance between two bodies of mass M1 and M2. Newton's “​Inverse-Square Law” worked well for about 250 years, but troubled Einstein.. Motion & Forces. Action and Reaction. Newton's Third Law; Momentum; Conservation of Momentum. Dynamic Carts. Dynamic Carts. With carts only. Describe .... Newton's Laws of Motion 0 1st Law — An object at rest will stay at rest, and an object in motion will stay in motion at constant velocity, unless acted upon by an .... Newton's Laws of Motion. ... Newton's Second Law: Force equals mass times acceleration (F = ma).Newton's Third Law:For every action there is an equal and​ .... PowerPoint® Lectures for ... relationship between mass, acceleration, and force: Newton's Second Law of Motion; To relate mass and weight; To see the effect of .... Dec 9, 2011 — continuous motion of minute particles in solution, which ... observed the same motion in particles of inorganic ... Newton´s Law. │. ⎠. ⎞. │. ⎝.. Laws of planetary motion discovered by Kepler; Laws of gravity and conservation of momentum discovered by Newton. Kepler's Laws can be derived from .... Physics PowerPoint Templates and Google Slides Themes . ... Chapter 2 PowerPoint slides: "Newton's First Law of Motion" PowerPoint slides based on Chapter .... Newtons Second Law of Motion – Force and Acceleration. Remember that Newton's first law said that a body at rest will stay at rest, unless acted upon by a force .... Gravitational Field Physics_Chapter_06.pdf Chapter 1 PowerPoint Slides: "About Science" Chapter 2 PowerPoint slides: "Newton's First Law of Motion" .... Dynamics studies the causes of motion. Will start with three basic laws of motion. Formulated by Sir Isaac Newton. Introduction. Sir Isaac Newton. 1642 – 1727.. Mar 23, 2018 — Small Groups: Read Newton's First Law article. Motion PPT--define first law of motion in notes. (USE pages 6-11). Small Groups: Penny Drop.. Chapter 6. Newton's Second Law. of Motion. FORCE CAUSES ACCELERATION. The combination of forces that act on an object is the net force. (Only the net .... Class 10 - Force and Motion I. Chapter 5 - Wednesday September 16th. Force and acceleration; Newton's first law; Force and mass; Newton's second law; Some .... Force and Motion. Newton's First Law. 8th Grade Science. Goal. Students will be able to explain Newton's first law. Newton's First law. An object at rest will .... Newton's Laws. Calculus; Light is composed of rainbow colors; Reflecting Telescope; Laws of Motion; Theory of Gravitation. Sir Isaac Newton. Force is an action .... Pete's PowerPoint Station is your destination for free PowerPoint presentations for kids and teachers about Newton's Laws of Motion, and so much more.. A) Isaac Newton. B) Albert Einstein. C) Charles Darwin. D) Thomas Edison. Video Quiz. 2. The first law of motion states that if all the forces acting upon an object .... What is the magnitude of the gravitational force each exerts on the other. Newton's Laws of Motion 1st Law – An object at rest will stay at rest, and an object in .... Your book stops because the force of friction stops it. Copyright © 2009 Pearson Education, Inc. 4-2 Newton's First Law of Motion. This is Newton's first law, which​ .... According to Newton's third law, the cylinder will experience a force downward on the lower surface of the cylinder and an equal and opposite force on the upper​ .... PowerPoint slides based on Chapter 2 of the "Conceptual Physics" textbook, :​Newton's First Law of Motion--Inertia". To print or download this file, click the link​ .... Coulomb's Law PPT #2 in Google Classroom ... January 28. Circular Motion Exam-Honors in Google Classroom ... Newton's Laws video in Google Classroom .... What the law of inertia says…. AKA Newton's First Law of Motion. An object at rest, stays at rest. ○ Because the net force is zero! Forces are balanced (equal .... Newton's Laws. Newton's ... Newton's First Law (law of inertia) ... What is this unbalanced force that acts on an object in motion? 1st Law. Once airborne, unless .... If it wasn't for Mars and its complicated travels across the night sky, Johannes Kepler may not have derived his Laws of Planetary Motion. Isaac Newton might not .... Why do objects fall toward Earth? What keeps the planets in motion in the sky? Newton Makes the Connection. The Law of Universal Gravitation states .... increases with the surface area of the object. Newton's Laws of Motion. Brainpop. NEWTON'S FIRST LAW OF MOTION. AKA: LAW OF INERTIA. An object at rest .... Sir Isaac Newton. Laws of Motion. November 2011. Sir Isaac Newton. 1. Described 3 laws that relate forces to motion. 2. Force-a push or a pull, all forces​ .... Nov 11, 2015 — the ppt are used during the lesson and are identified in the ppt for use where they are ... o Driving Home Newton's Laws of Motion. [“You Do”].. Learn about projectile motion by firing various objects. Newton’s Laws of Motion 1st Law: Every body continues in its state of rest or of uniform motion in a​ .... Newtons Third Law – Action and Reaction. Interactions Produce Forces. A force is a push or pull. On closer inspection, it is an interaction between one thing and​ .... Newton's First Law of Motion. Inertia- the tendency of an object to resist change. The greater the mass the greater the inertia! Force. Force- Push or a pull on an .... Laws of Motion. ... Newton's Laws of Motion on Wikipedia; Powerpoint presentation from the Thomas Jefferson National Accelerator Facility explaining some .... ISAAC NEWTON was one of the greatest scientists and mathematicians that ever lived. He was ... Download as PPT, PDF, TXT or read online from Scribd.. Newton's Laws of Motion. Sir Isaac Newton. Described 3 laws that relate forces to motion. Force-a push or a pull, all forces have size and direction. A force can .... Aug 21, 2017 — ... Law of. Planetary Motion ... The law is universal to all masses and works throughout the Universe. Universal Law of Gravitation. HENRY CAVENDISH 1731-1810. Determined experimentally the value of Newton's Universal .... This forms the basis of Newton's first law of motion, which states: The tendency of an object to continue in its state of rest or uniform motion is called inertia.. Kepler's Laws of Planetary Motion. Lecture 14. Monday: 1 March 2004. Physical Principles of Design Forces and Motion. Learning to analyze and predict the .... Jun 29, 2011 — Sir Isaac Newton formulated 3 physical “laws” that became the basis for classical mechanics. Through these laws he describe the relationship .... From the definition of work, from Newton's second law of motion, and from ... Chapter 3 Force and Motion - Free download as Powerpoint Presentation (.ppt), ... 3a5286bf2b 49

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