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Waves & Oscillations Physics 42200 Spring 2015 Semester
Waves & Oscillations Physics 42200 Spring 2015 Semester

... Newton’s second law applies. – For example, a “stationary” reference frame or one that moves with constant velocity. – This is sort of a circular argument but it is still useful. ...
Force and Motion {PowerPoint}
Force and Motion {PowerPoint}

... Answer: False Newton’s First Law of Motion states: Objects in motion stay in motion in a straight line unless acted upon by an outside force. ...
Concept Summary
Concept Summary

... o Acceleration of a freely falling body called acceleration due to gravity  Magnitude at Earth’s surface = g = 9.80 m/s2 = 32.3 ft/s2  Always directed downward toward center of the Earth o In absence of air resistance, book and feather fall with same acceleration and land at same time o Any object ...
Work Power Enrgy
Work Power Enrgy

Kinetic and Potential Energy Answers
Kinetic and Potential Energy Answers

ce-phy ii
ce-phy ii

... (2000-CE-PHY II - 2) 2. It is said that Galileo Galilei (1564-1642), an Italian scientist, dropped a small iron ball and a large cannon ball from the top of the Leaning Tower of Pisa. He found that the two balls reached the ground at almost the same time. Which of the following is/are correct deduct ...
MATH10222, Chapter 2: Newtonian Dynamics 1 Newton`s Laws 2
MATH10222, Chapter 2: Newtonian Dynamics 1 Newton`s Laws 2

... Having considered motion confined to a line in the previous section, we now go on to consider motion confined to a plane. At any given instant in time the particle’s position relative to the origin of a coordinate system is denoted by r(t). At this same instant the particle is moving in the directio ...
Chapter 7 Problems
Chapter 7 Problems

Lecture19
Lecture19

... A mass on a spring oscillates back & forth with simple harmonic motion of amplitude A. A plot of displacement (x) versus time (t) is shown below. At what points during its oscillation is the speed of the block biggest? 1. When x = +A or -A (i.e. maximum displacement) 2. When x = 0 (i.e. zero displac ...
Newton`s 1st Law of Motion
Newton`s 1st Law of Motion

... boy sits on it. The coefficient of friction for the snow and metal sled is 0.012. What force is necessary to pull the sled at constant speed? (Hint: the applied force is equal, but opposite direction to the force of friction.) ...
Concept of Physics III
Concept of Physics III

ƒ A S ƒ ƒ B
ƒ A S ƒ ƒ B

... Using Newton’s first law: When a body is in equilibrium in an inertial frame of reference—that is, either at rest or moving with constant velocity—the vector sum of forces acting on it must be zero (Newton’s first law). Free-body diagrams are essential in identifying the forces that act on the body ...
Work
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Bumper Cars Observations about Bumper Cars
Bumper Cars Observations about Bumper Cars

... Moving cars tend to stay moving Changing a car’s motion takes time Impacts alter velocities and angular velocities Cars often appear to exchange their motions The fullest cars are the hardest to redirect The least-full cars get slammed during collisions ...
ICP Motion
ICP Motion

ZCT 104 Exam solution, sessi 2003/04
ZCT 104 Exam solution, sessi 2003/04

Rotational Motion - University of Colorado Boulder
Rotational Motion - University of Colorado Boulder

... r = "lever arm" = distance from axis to point of application of force F = component of force perpendicular to lever arm Example: Wheel on a fixed axis: Notice that only the perpendicular component of the force F will rotate the wheel. The component of the force parallel to the lever arm (F||) has n ...
Lecture 19 - Purdue Physics
Lecture 19 - Purdue Physics

The Answer
The Answer

... 49. What is the net force (in Newtons) causing the system of masses to accelerate? (0.238 kg ─0.235 kg)x 9.8 m/s2 = 0.0294 N a) slowly b) with a sudden jerk (inertia!) 47. (From the inertia activity stations) When a cork is tied to a string in a flask of water and the flask is quickly accelerated to ...
Word format
Word format

lec12 - UConn Physics
lec12 - UConn Physics

... This is an example of turning one form of energy into another (thermal energy). ...
South Pasadena · AP Chemistry
South Pasadena · AP Chemistry

... (This question is from Regular Conceptual Physics) 54. The force of air resistance acting on an elephant, compared to the force of air resistance acting on a feather is . . a) greater for the elephant The effect of the air resistance is greater on the feather because it is lighter in weight, but the ...
5. A driver hits the brakes and accelerates at –3.8 m/s 2 for 2.9
5. A driver hits the brakes and accelerates at –3.8 m/s 2 for 2.9

The 2015 Exam - Physics and Engineering Physics
The 2015 Exam - Physics and Engineering Physics

Newton`s second law of motion
Newton`s second law of motion

... Do they find that acceleration is proportional to force, and inversely proportional to mass? Numerically, are their results consistent with the equation F = ma? You may wish to point out that the experiment can only show proportionality. In other words, we can only conclude that F = kma, where k is ...
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Relativistic mechanics

In physics, relativistic mechanics refers to mechanics compatible with special relativity (SR) and general relativity (GR). It provides a non-quantum mechanical description of a system of particles, or of a fluid, in cases where the velocities of moving objects are comparable to the speed of light c. As a result, classical mechanics is extended correctly to particles traveling at high velocities and energies, and provides a consistent inclusion of electromagnetism with the mechanics of particles. This was not possible in Galilean relativity, where it would be permitted for particles and light to travel at any speed, including faster than light. The foundations of relativistic mechanics are the postulates of special relativity and general relativity. The unification of SR with quantum mechanics is relativistic quantum mechanics, while attempts for that of GR is quantum gravity, an unsolved problem in physics.As with classical mechanics, the subject can be divided into ""kinematics""; the description of motion by specifying positions, velocities and accelerations, and ""dynamics""; a full description by considering energies, momenta, and angular momenta and their conservation laws, and forces acting on particles or exerted by particles. There is however a subtlety; what appears to be ""moving"" and what is ""at rest""—which is termed by ""statics"" in classical mechanics—depends on the relative motion of observers who measure in frames of reference.Although some definitions and concepts from classical mechanics do carry over to SR, such as force as the time derivative of momentum (Newton's second law), the work done by a particle as the line integral of force exerted on the particle along a path, and power as the time derivative of work done, there are a number of significant modifications to the remaining definitions and formulae. SR states that motion is relative and the laws of physics are the same for all experimenters irrespective of their inertial reference frames. In addition to modifying notions of space and time, SR forces one to reconsider the concepts of mass, momentum, and energy all of which are important constructs in Newtonian mechanics. SR shows that these concepts are all different aspects of the same physical quantity in much the same way that it shows space and time to be interrelated. Consequently, another modification is the concept of the center of mass of a system, which is straightforward to define in classical mechanics but much less obvious in relativity - see relativistic center of mass for details.The equations become more complicated in the more familiar three-dimensional vector calculus formalism, due to the nonlinearity in the Lorentz factor, which accurately accounts for relativistic velocity dependence and the speed limit of all particles and fields. However, they have a simpler and elegant form in four-dimensional spacetime, which includes flat Minkowski space (SR) and curved spacetime (GR), because three-dimensional vectors derived from space and scalars derived from time can be collected into four vectors, or four-dimensional tensors. However, the six component angular momentum tensor is sometimes called a bivector because in the 3D viewpoint it is two vectors (one of these, the conventional angular momentum, being an axial vector).
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