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Work and Energy
Work and Energy

Newton`s law
Newton`s law

... B) The 20 N weight accelerates faster because it has more inertia. C) The 5.0 N weight accelerates faster because it has a smaller mass. D) They both accelerate at the same rate because they have the same weight to mass ratio. Answer: D ...
Physics for the Sciences 07:150:193 Fall 2003
Physics for the Sciences 07:150:193 Fall 2003

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Part II

Lake Compounce General Info
Lake Compounce General Info

Kinetic Energy and Work
Kinetic Energy and Work

... Kinetic Energy In many situations, energy can be considered as “the ability to do work” Energy can exist in different forms Kinetic energy is the energy associated with the motion of an object A moving object can do work on another object – E.g hammer does work on nail. ...
Chapter 7 notes physics 2
Chapter 7 notes physics 2

... collision: 1. Elastic collision – One in which the total kinetic energy of the system after collision is equal to the total kinetic energy before the collision. 2. Inelastic collision – One in which the total kinetic energy of the system is not the same before and after the collision; if the objects ...
Collision Prob PPT from class
Collision Prob PPT from class

Conceptual Questions
Conceptual Questions

... 8. If the net work done on an object is positive, then the object's kinetic energy A) decreases. B) remains the same. C) increases. D) is zero. 9. If the net work done on an object is negative, then the object's kinetic energy A) decreases. B) remains the same. C) increases. D) is zero. 10. If the n ...
Work and Energy
Work and Energy

Slide 1
Slide 1

5 The Harmonic Oscillator
5 The Harmonic Oscillator

Rotational Motion
Rotational Motion

centripetal force
centripetal force

... What will be the rotational and tangential speed of a penny placed at 3 cm away from the center? ...
Conservation of Momentum and Energy
Conservation of Momentum and Energy

... momentum that is conserved. If the conservation laws hold, this should be equal to one. Results less than one indicate that momentum was lost. In the same way, the fraction of kinetic energy that is conserved will be found. Newton’s First Law states that if there is no net force acting on an object, ...
Special Rotational Dynamics Outline
Special Rotational Dynamics Outline

... Just as work is done when a force is applied over a displacement, work is also done when torques are applied over an angular displacement. ...
Fun items for the teaching of mechanics
Fun items for the teaching of mechanics

... 7. Estimate the world record of board-jumping and pole-vaulting given that the world record of 100 m sprint is 10s. Explain the differences between the actual record and the estimated results. 8. A fluid with R.D. (relative density) = 1 but viscosity lower than that of water will be used in future s ...
Notes on Friction and Normal Force
Notes on Friction and Normal Force

1 - vnhsteachers
1 - vnhsteachers

Newton`s Second Law
Newton`s Second Law

... 1) Write the equation of motion Fnet = ma. Where, Fnet is the net force and a is the acceleration vector and is equal to ax i + ay j. 2) Draw a free body diagram (FBD) which shows all forces acting on the object/ objects. Do not draw the components of the force on the FBD. 3) Specify a coordinate sy ...


... What happens to the work done on a system? Energy is transferred into the system, but in what form? Does it remain in the system or move on? The answers depend on the situation. For example, if the lawn mower in Figure 7.2(a) is pushed just hard enough to keep it going at a constant speed, then ener ...
Chapter 5 Work and Energy conclusion
Chapter 5 Work and Energy conclusion

... THE PRINCIPLE OF CONSERVATION OF ENERGY Energy can neither be created not destroyed, but can only be converted from one form to another. Heat energy is the kinetic or vibrational energy of molecules. The result of a non-conservative force is often to remove mechanical energy and transform it into he ...
NEWTON`S 2 LAW OF MOTION 19 FEBRUARY 2013 Demonstration
NEWTON`S 2 LAW OF MOTION 19 FEBRUARY 2013 Demonstration

Fall Physics Review
Fall Physics Review

NEWTON`S LAWS OF MOTION
NEWTON`S LAWS OF MOTION

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Hunting oscillation



Hunting oscillation is a self-oscillation, usually unwanted, about an equilibrium. The expression came into use in the 19th century and describes how a system ""hunts"" for equilibrium. The expression is used to describe phenomena in such diverse fields as electronics, aviation, biology, and railway engineering.
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