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part2

... normal to the handle of the handoperated grinder. The gear inside the housing with its shaft and attached handle have a combined mass of 1.8 kg and a radius of gyration about their axis of 72 mm. The grinding wheel with its attached shaft and pinion (inside housing) have a combined mass of 0.55 kg a ...
Lesson 1: Newton`s First Law of Motion
Lesson 1: Newton`s First Law of Motion

Vectors: A Geometric Approach
Vectors: A Geometric Approach

3.5 Represent and Reason Consider the experiments from
3.5 Represent and Reason Consider the experiments from

Physics 207: Lecture 2 Notes
Physics 207: Lecture 2 Notes

L-11 Rotational Inertia symbol I
L-11 Rotational Inertia symbol I

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... Chapter Assessment Questions Answer 4 Yes, because momentum of an object is equal to the mass of the object times the object’s velocity. Hence, if a bicycle with very little mass as compared to a car runs with a greater velocity, and on the other hand, if the car runs with a smaller velocity. It may ...
Chap.4 Conceptual Modules Fishbane
Chap.4 Conceptual Modules Fishbane

... In both cases your momentum will decrease to zero in the collision. Given that the time Dt of the collision is the same, then the force exerted on YOU will be the same!! If a truck is approaching at 30 mph, then you’d be better off hitting the wall in that case. On the other hand, if it’s only a mos ...
Chap.4 Conceptual Modules Fishbane
Chap.4 Conceptual Modules Fishbane

... In both cases your momentum will decrease to zero in the collision. Given that the time Dt of the collision is the same, then the force exerted on YOU will be the same!! If a truck is approaching at 30 mph, then you’d be better off hitting the wall in that case. On the other hand, if it’s only a mos ...
Notes on circular motion - University of Miami Physics Department
Notes on circular motion - University of Miami Physics Department

PC4262 Remote Sensing - Centre for Remote Imaging, Sensing and
PC4262 Remote Sensing - Centre for Remote Imaging, Sensing and

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Ch11a Powerpoint

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Application of the Langevin equation to fluid suspensions

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07_Circular Motion and Gravitation

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Conservation of Momentum and Energy

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Linear Kinetics - Weber State University

... • Explain what factors govern the outcome of a collision between two bodies • Discuss the interrelationship among mechanical work, power, and energy • Solve quantitative problems related to kinetic concepts ...
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ROTATIONAL MOTION and the LAW of GRAVITY

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Introduction to Biomechanics and Vector Resolution

... direction is + acceleration Decreasing speed in the positive direction is – acceleration Increasing speed in the negative direction is – acceleration Decreasing speed in the negative direction is + acceleration ...
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motion in one dimension

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Chapter 3 Two-Dimensional Motion and Vectors

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Ch 8 Rotational Motion and Equilibrium

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Newton`s Laws of Motion

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Relativistic angular momentum



""Angular momentum tensor"" redirects to here.In physics, relativistic angular momentum refers to the mathematical formalisms and physical concepts that define angular momentum in special relativity (SR) and general relativity (GR). The relativistic quantity is subtly different from the three-dimensional quantity in classical mechanics.Angular momentum is a dynamical quantity derived from position and momentum, and is important; angular momentum is a measure of an object's ""amount of rotational motion"" and resistance to stop rotating. Also, in the same way momentum conservation corresponds to translational symmetry, angular momentum conservation corresponds to rotational symmetry – the connection between symmetries and conservation laws is made by Noether's theorem. While these concepts were originally discovered in classical mechanics – they are also true and significant in special and general relativity. In terms of abstract algebra; the invariance of angular momentum, four-momentum, and other symmetries in spacetime, are described by the Poincaré group and Lorentz group.Physical quantities which remain separate in classical physics are naturally combined in SR and GR by enforcing the postulates of relativity, an appealing characteristic. Most notably; space and time coordinates combine into the four-position, and energy and momentum combine into the four-momentum. These four-vectors depend on the frame of reference used, and change under Lorentz transformations to other inertial frames or accelerated frames.Relativistic angular momentum is less obvious. The classical definition of angular momentum is the cross product of position x with momentum p to obtain a pseudovector x×p, or alternatively as the exterior product to obtain a second order antisymmetric tensor x∧p. What does this combine with, if anything? There is another vector quantity not often discussed – it is the time-varying moment of mass (not the moment of inertia) related to the boost of the centre of mass of the system, and this combines with the classical angular momentum to form an antisymmetric tensor of second order. For rotating mass–energy distributions (such as gyroscopes, planets, stars, and black holes) instead of point-like particles, the angular momentum tensor is expressed in terms of the stress–energy tensor of the rotating object.In special relativity alone, in the rest frame of a spinning object; there is an intrinsic angular momentum analogous to the ""spin"" in quantum mechanics and relativistic quantum mechanics, although for an extended body rather than a point particle. In relativistic quantum mechanics, elementary particles have spin and this is an additional contribution to the orbital angular momentum operator, yielding the total angular momentum tensor operator. In any case, the intrinsic ""spin"" addition to the orbital angular momentum of an object can be expressed in terms of the Pauli–Lubanski pseudovector.
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