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Topic: Angular

	Angular size - Wikipedia, the free encyclopedia
		Angular size is a measurement of how large or small something is using rotational measurement (degrees of arc, arc-minutes, and arc-seconds).
		Angular size depends on how close you are to the object you are measuring.
		While angular sizes measured in degrees are useful for larger patches of sky (in the constellation of Orion, for example, the three stars of the belt cover about 3 degrees of angular size), we need much finer units when talking about the angular size of galaxies, nebulae or other objects of the night sky.
	en.wikipedia.org /wiki/Angular_size (338 words)

	Angular Kinematics
		It is very important to understand the angular motion to deal with human motion because most of the human movement involves rotation about the joints.
		in angular kinematics is compatible to the position in linear kinematics.
		When the angular speed is constant, All points within the body experiences the constant linear speed.
	www.bsu.edu /web/jkshim/bm/kinematics/angularkinematics/angularkinematics.htm (550 words)

	Bang! Boing! Pop! Angular Momentum
		The angular momentum of the skater is conserved.
		When angular momentum stays constant, velocity is inversely proportional to the distance of the object from the axis of rotation; when the distance goes down, the velocity goes up and vice versa.
		Angular momentum is conserved when no force is acting to change the rotation.
	library.thinkquest.org /3042/angular.html (577 words)

	Vector Model of Angular Momentum
		The orbital angular momentum for an atomic electron can be visualized in terms of a vector model where the angular momentum vector is seen as precessing about a direction in space.
		As in the case of the orbital angular momentum alone, the projection of the total angular momentum along a direction in space is quantized to values differeing by one unit of angular momentum.
		The z-component of angular momentum is quantized in values one unit apart, so for the upper level of the sodium doublet with j=3/2, the vector model gives the splitting shown.
	hyperphysics.phy-astr.gsu.edu /hbase/quantum/vecmod.html (565 words)

	Foal Angular Leg Deformities
		Angular limb deformities in the foal are defined as a deviation from normal alignment when viewed from the front.
		Angular limb deformity may be caused by five predisposing defects.
		Angular limb deformities may be present at the time of birth or may develop at any time prior to the closure of the growth plates.
	www.theperuvianpaso.com /foal_angular_leg_deformities_in_peruvian_paso_and_other_horses.htm (919 words)

	Angular measure (Site not responding. Last check: 2007-11-01)
		The angular diameter of the Sun or the Moon is only about 1/4 of that, or just over 1/2 degree, which is 30 minutes of arc.
		If you imagine a circle centered on your eye and passing through the object, the distance to the object is the radius of the circle, and the arc of that circle occupied by the object has the same length as the width of the object.
		The ratio of arc length (the size of the object) to the radius of the circle (the distance to the object) is the angular size of the object in radians.
	mintaka.sdsu.edu /GF/explain/atmos_refr/angles.html (575 words)

	Problem Set - Angular Motion - Physics 107
		Find (a) the angular acceleration and (b) the angular speed of the cylinder 2.0 s after the force is applied to the cylinder initially at rest.
		Show that the magnitude of the angular momentum of a particle can be written as the product of (a) the momentum of the particle p and the component of its position vector r perpendicular to p and (b) r and the component of its momentum p perpendicular to r.
		Find the angular momentum of the particle about the origin when the particle is (a) at the origin, (b) at its highest point, and (c) just before it hits the ground.
	www.wellesley.edu /Physics/phyllisflemingphysics/107_p_angular.html (1972 words)

	Bacterial Angular Leaf Spot of Strawberry - Tree Fruit & Berry Pathology
		Bacterial angular leaf spot was first reported in Minnesota in 1960, and appears to have originated in the United States.
		Angular leaf spot on the underside (abaxial)(Fig.1) and topside (adaxial)(Fig.2) of strawberry leaves.
		Angular leaf spot bacteria are carried from plant to plant by splashing water from rain or overhead irrigation, as well as harvesting operations.The motile bacterial cells may enter the plant through drops of dew, guttation droplets, rain or irrigation water.
	www.nysaes.cornell.edu /pp/extension/tfabp/salsmf.shtml (894 words)

	Problem Set - Angular Motion - Physics 104
		Find (a) the magnitude and direction of its angular momentum relative to the center of the circle when its velocity is v and (b) an alternative expression for L in terms of the angular velocity
		Show that the magnitude of the angular momentum of a particle can be written as the product of (a) the momentum of the particle p and the component its position vector r perpendicular to p and (b) the position vector r and the component of its momentum p perpendicular to r.
		Determine the angular momentum of the system about the origin at the instant the speed of each is 5.0 m/s.
	www.wellesley.edu /Physics/phyllisflemingphysics/104_p_angularmotion.html (1133 words)

	Angular and Linear Velocity (Site not responding. Last check: 2007-11-01)
		The angular velocity of a particle traveling on a circular path is the ratio of the angle traversed to the amount of time it takes to traverse that angle.
		Angular velocity is a measure of the angular displacement per unit time.
		is angular velocity in radians and r is the radius.
	www.algebralab.org /lessons/lesson.aspx?file=Trigonometry_TrigAngLinVelocity.xml (743 words)

	An Exploration of Meteor Angular Speeds
		Figures 1 to 5 show the meteor angular speed, V_theta, plotted on the y-axis as a function of meteor-radiant angular distance, theta, on the x-axis, for four constant meteor angular altitudes (each shown as a separate curve): alt=0 deg (dash-dot), alt=30 deg (dash), alt=60 deg (dot), and alt=90 deg (solid).
		A rough estimate of the average meteor angular speed is then obtained by dividing the distance by the duration later during initial data reduction on paper.
		The meteor angular speed estimate is primarily used for meteor shower classification verification, using the relationships shown in Equations 1 & 2 and Figures 1-5.
	www.amsmeteors.org /richardson/angspeed.html (1773 words)

	Physics - Kinematics - Angular Velocity - Martin Baker
		As seen in the Angular Velocity of particle section, angular velocity depends on the point that we are measuring the rotation about.
		So for a solid object, the angular velocity of all the particles, from which it is composed, are different.
		Angular velocity in 3D space can be held in a quaternion (see class sfrotation) or a matrix (see class sftransform).
	www.euclideanspace.com /physics/kinematics/angularvelocity (1529 words)

	More About Angular Size
		An object's angular size is the angle between the lines of sight to its two opposite sides.
		An object's angular size is a measure of how large the object actually appears to be (which is a function of both actual size and distance away).
		In astronomy, the angular sizes of most objects are much smaller than even a single degree.
	imagine.gsfc.nasa.gov /YBA/HTCas-size/more-ang_size.html (289 words)

	The Biomechanics of Skating: Conservation of Angular Momentum (Site not responding. Last check: 2007-11-01)
		For example, it is important to understand the concepts of force, angular displacement, angular velocity, and momentum to fully comprehend the analysis of the figure skating jumps and spins.
		The objectives of this unit is to use example from figure skating to become familiar with the concept of conservation of angular momentum, to be able to solve basic angular momentum problems, and to learn great examples from figure skating for teaching the conservation of angular momentum to your students.
		Conservation of angular momentum is the principle that the angular momentum of an object remains constant as long as no external torque, or moment, acts on that object.
	btc.montana.edu /olympics/physbio/biomechanics/cam-intro.html (343 words)

	Angular Momentum
		To find the spin angular momentum, subdivide the object into small pieces of mass and find the angular momentum for each of the small pieces.
		This radiation is produced at the expense of the rotational energy and the angular momentum is not strictly conserved---it slowly decreases.
		The orbital angular momentum is conserved, so as the gas' distance from the compact companion DEcreases, its orbital speed must INcrease.
	www.astronomynotes.com /angmom/s2.htm (647 words)

	Angular velocity
		The instantaneous angular velocity at a point A is then defined to be the average angular velocity between A and a point B as the point B approaches A:
		Angular velocity is measured in radians / second, although for motors in particular it is commonly expressed in rpm (revolutions per minute).
		Given that tires have a radius of about half a meter, we can figure out the angular velocity of the tires, either in revolutions per second or radians per second.
	theory.uwinnipeg.ca /mod_tech/node45.html (320 words)

	Chandra :: Photo Album :: Scales and Angular Measurement (Site not responding. Last check: 2007-11-01)
		The apparent sizes of and distances between objects are described with angular measurement.
		The system of angular measurement used by astronomers is based on divisions of the circle.
		The angular diameter is proportional to the actual diameter divided by its distance.
	chandra.harvard.edu /photo/scale.html (351 words)

	Amazon.com: Angular Momentum: Books: D. M. Brink,G. R. Satchler (Site not responding. Last check: 2007-11-01)
		This book introduces the quantum theory of angular momentum to students who are unfamiliar with it and develops it to a stage useful for research.
		Introduces the quantum theory of angular momentum to students who are unfamiliar with it and develops it to a stage useful for research.
		It is one of three books on angular momentum theory that came out at around the same time (the others are by Rose and Edmonds), each has a different approach to the subject, and serious students usually have a copy of all three; this is generally considered to be the most readable.
	www.amazon.com /Angular-Momentum-D-M-Brink/dp/0198517599 (890 words)

	Mass and angular momentum loss
		Angular momentum loss is a crucially important topic in astrophysics, since only by losing angular momentum can large, diffuse objects, such as interstellar gas clouds, collapse under the influence of gravity to produce small, compact objects, such as stars and proto-stars.
		is the angular momentum per unit mass carried off by the solar wind.
		Note that the angular momentum carried off by the solar wind is indeed equivalent to that which would be carried off were coronal plasma to co-rotate with the Sun out to the Alfvén radius, and subsequently outflow at constant angular velocity.
	farside.ph.utexas.edu /teaching/plasma/lectures/node68.html (732 words)

	Portrait - Angular Momentum
		ANGULAR MOMENTUM is a concept taken from astrophysics that derives from the combination of a moment of inertia with an angular velocity.
		ANGULAR MOMENTUM is a vector quantity, requiring the specification of both a magnitude and a direction for its complete description.
		Appropriate MKS or SI units for ANGULAR MOMENTUM are kilogram metres squared per second (kg-m2/sec).For a given object or system isolated from external forces, the total ANGULAR MOMENTUM is a constant, a fact that is known as the law of conservation of ANGULAR MOMENTUM.
	www.angularmomentum.com /e/portrait.e/portrait.e.html (664 words)

	Physics - Kinematics - Angular Acceleration - Martin Baker
		A linear acceleration due to centrifugal force, which is of magnitude rw^2 and with a direction toward the centre of the orbit.
		But if we take the special case where we are measuring the angular acceleration about the centre of the circle of rotation, then the centrifugal acceleration is in the same direction as
		Angular acceleration in 3D space can be held in a quaternion (see class sfrotation) or a matrix (see class sftransform).
	www.euclideanspace.com /physics/kinematics/angularacceleration/index.htm (688 words)

	Angular Momentum
		Compton's theory accounts for the momentum of the photon itself, and explains the scattering of radiation in terms of corpuscular photons, but it does not explain how the photons always manage to miss the nucleus of the atom or fail to strike electrons from the outside toward the inside of the atom.
		The amount of angular momentum available from the light is determined by the distance between the emitting and absorbing atoms and the power available at absorption.
		In the above case, the angular momentum is not quantum, but depends on the power level reaching the absorber atom and its resonant frequency.
	www.16pi2.com /angular_momentum.htm (521 words)

	Angular Momentum Quantization: Physical Manifestations
		This means that if we measure the angle between the total angular momentum and the z-axis, there can only be 2l + 1 possible answers, the total angular momentum cannot point in an arbitrary direction relative to the z-axis, odd though this conclusion seems.
		The main difference is that states of different angular momentum which were degenerate in the Coulomb case are no longer the same energy in the shielded Coulomb case.
		The different angular momenta are denoted by letters, s for l = 0, p for l = 1, d for l = 2, f for l = 3, g for l = 4 and then on alphabetically.
	galileo.phys.virginia.edu /classes/252/Angular_Momentum/Angular_Momentum.html (2656 words)

	Angular(1)
		Conservation of angular momentum, addition of angular momentum, the Clebsch-Gordan coefficients, orbital angular momentum and parity.
		The spin angular momenta and the orbital angular momentum of the particles in the final state must add to give the angular momentum of the initial state.
		The possible values for the orbital angular momentum quantum number are l=1 and l=2.
	electron6.phys.utk.edu /phys594/archives/quantum/Angular/angular1.htm (653 words)

	The Biomechanics of Skating: Conservation of Angular Momentum (Site not responding. Last check: 2007-11-01)
		Angular momentum is generated by the skater applying a force against the ice.
		The larger the torque, the greater the angular momentum.
		Note that when calculating angular momentum, it is important to convert any angular velocity to readians/s before performing the calculation.
	btc.montana.edu /olympics/physbio/biomechanics/cam02.html (497 words)

	Brain "busters" - angular momentum, moment of inertia, etc. (Site not responding. Last check: 2007-11-01)
		Answer [7]: The total angular momentum of the Earth-Moon system has several contributing sources; from the rotation of the Earth on its axis, from the rotation of the Moon on its axis and the rotation of the Moon about the Earth.
		As a result the angular speed of C will vary depending on the 'take-off' point on A. Since C then drives B, the angular speed of C determines the angular speed of B. Clearly, by varying the take-off position, the relative angular speeds of A and B can be changed.
		During the process of changing orbit, angular momentum is conserved, i.e., L is constant, since there is no external torque on the system because the line of the force F passes through the axis of rotation.
	courses.science.fau.edu /~rjordan/busters_6/answers_6.htm (1794 words)

	Light With Orbital Angular Momentum
		The drawing shows light carrying different amounts of orbital angular momentum, a newly exploited property of light that can be used to carry, and retrieve, a wealth of information.
		The corkscrew patterns represent equal-phase regions about the beam axis; in other words, regions of the light wave that are "synchronized" or in the same phase (such as the portions of the wave with maximum electric field) trace out corkscrew-like patterns in the direction that the light beam travels.
		Note that in light with orbital angular momentum, the direction of polarization (denoted by the direction of the arrow) does not change across the cross section.
	www.aip.org /png/2005/229.htm (270 words)

	SparkNotes: Angular Momentum: Problems
		If the distance between O and the line is 2 m, and the object has a mass of 2 kg and a velocity of 3 m/s, what is the maximum angular momentum of the particle with respect to O? A body moving in a straight line by an axis O
		What is the angular momentum of a thin hoop of radius 2 m and mass 1 kg that is rotating at a velocity of 4 rad/s?
		What is the total angular momentum of the system with respect to O? A two particle system.
	www.sparknotes.com /physics/rotationalmotion/angularmomentum/problems.html (277 words)

	Graduate Physics Laboratory Handbook: Angular Coorelations
		Using a radioactive source which has two gamma rays that are emitted with an anisotropic decay, you will measure the angular correlation between the two rays.
		Steffen, "Extranuclear effects on angular correlations of nuclear radiations," Adv.
		Biedenharn and M. Rose, "Theory of angular correlation of nuclear radiation," Rev. Mod.
	www.physics.umd.edu /courses/Phys621/gradlab/glhb/angular.html (244 words)

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