![Windsor High School Birdsell Conceptual Physics A Windsor High](http://s1.studyres.com/store/data/002755247_1-e258642c3b1eec9845f90f408c0c2218-300x300.png)
Exercises – Chapter 2
... 35. While a gymnast is in the air during a leap, which of the following quantities must remain constant for her: velocity, momentum, angular velocity, or angular momentum? E.35 Angular momentum. 36. If you sit in a good swivel chair with your feet off the floor, the chair will turn slightly as you m ...
... 35. While a gymnast is in the air during a leap, which of the following quantities must remain constant for her: velocity, momentum, angular velocity, or angular momentum? E.35 Angular momentum. 36. If you sit in a good swivel chair with your feet off the floor, the chair will turn slightly as you m ...
PSE4_Lecture_Ch09 - Linear Momentum
... A fully fueled rocket has a mass of 21,000 kg, of which 15,000 kg is fuel. The burned fuel is spewed out the rear at a rate of 190 kg/s with a speed of 2800 m/s relative to the rocket. If the rocket is fired vertically upward calculate: (a) the thrust of the rocket; (b) the net force on the rocket a ...
... A fully fueled rocket has a mass of 21,000 kg, of which 15,000 kg is fuel. The burned fuel is spewed out the rear at a rate of 190 kg/s with a speed of 2800 m/s relative to the rocket. If the rocket is fired vertically upward calculate: (a) the thrust of the rocket; (b) the net force on the rocket a ...
Chapter 9
... A 15 N force is applied to a cord wrapped around a pulley of mass M = 4 kg and radius R = 33 cm. The pulley is observed to accelerate uniformly from rest to reach an angular speed of 30 rad / s in 3 s. Determine the moment of inertia of the pulley (rotates about center). ...
... A 15 N force is applied to a cord wrapped around a pulley of mass M = 4 kg and radius R = 33 cm. The pulley is observed to accelerate uniformly from rest to reach an angular speed of 30 rad / s in 3 s. Determine the moment of inertia of the pulley (rotates about center). ...
PPT
... on an attached rope with constant force FT. It accelerates to final angular speed w in time t. A better estimate takes into account that there is friction in the system. This gives a torque (due to the axel) we’ll call this tfric. What is this better estimate of the moment of Inertia? Physics 218, L ...
... on an attached rope with constant force FT. It accelerates to final angular speed w in time t. A better estimate takes into account that there is friction in the system. This gives a torque (due to the axel) we’ll call this tfric. What is this better estimate of the moment of Inertia? Physics 218, L ...
circular motion
... revolutions are repeated after equal interval of time. Hence UCM is a periodic motion. * In any type of circular motion the linear velocity of the particle is always directed along the tangent to circular path. Hence in UCM even the speed remains constant, the direction of linear velocity goes on ch ...
... revolutions are repeated after equal interval of time. Hence UCM is a periodic motion. * In any type of circular motion the linear velocity of the particle is always directed along the tangent to circular path. Hence in UCM even the speed remains constant, the direction of linear velocity goes on ch ...
Lesson Record – Physics -2009-2010
... 2. Hand out CD 5-2. Students work vectors problems on p. 1 3. HW. Finish p. 1 Oct. 19 1. Review concept that perpendicular directions are independent of each other. 2. Students work on problem. Boat crossing an 80 wide river. Water speed
is 5 toward opposite shore. How long to cross?
3. Same ...
... 2. Hand out CD 5-2. Students work vectors problems on p. 1 3. HW. Finish p. 1 Oct. 19 1. Review concept that perpendicular directions are independent of each other. 2. Students work on problem. Boat crossing an 80
momentum - Mrs. Brenner`s Biology
... as Newton’s second law of motion was, to produce τΔt = IΔω. • The left side of this equation is the angular impulse of the rotating object and the right side can be rewritten as Δω = ωf− ωi. ...
... as Newton’s second law of motion was, to produce τΔt = IΔω. • The left side of this equation is the angular impulse of the rotating object and the right side can be rewritten as Δω = ωf− ωi. ...
THEORETICAL SUBJECTS General Physics Course –Part I 1 term
... a. The average acceleration b. The instantaneous acceleration c. Discuss relative the sign of x-acceleration and x-velocity. 4) Write the equations of motion corresponding to the case of unidimensional motion with constant acceleration. Give the analytical expression for x(t), v(t) and a(t) and the ...
... a. The average acceleration b. The instantaneous acceleration c. Discuss relative the sign of x-acceleration and x-velocity. 4) Write the equations of motion corresponding to the case of unidimensional motion with constant acceleration. Give the analytical expression for x(t), v(t) and a(t) and the ...
Curriculum Map - Weld RE
... Free fall and air resistance NEWTONS 3RD LAW Action forces Reaction forces ...
... Free fall and air resistance NEWTONS 3RD LAW Action forces Reaction forces ...
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.