what is the lorentz factor
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Lorentz factor It is not to be confused with gamma function. The Lorentz factor or Lorentz term is the factor by which time, length, and relativistic mass change for an object while that object is moving. The expression appears in several equations in special relativity, and it arises in derivations of the Lorentz transformations.
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- In most textbooks, the Lorentz transformation is derived from the two postulates: the. equivalence of all inertial reference frames and the invariance of the speed of light. However, the most general transformation of space and time coordinates can be derived using only the.
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Poisson's ratio Poisson's ratio (letter v) is a measure of the contraction that happens when an object is stretched.or example, if a block is being stretched as shown in the image to the right, the equation for the poisson's ratio will be: Poisson's ratio ranges from 0.0-0.5 for common materials, though for materials with certain structures, can be as low as -1.
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Acentric factor The acentric factor is a conceptual number introduced by Kenneth Pitzer in 1955, proven to be very useful in the description of matter. It has become a standard for the phase characterization of single & pure components. The other state description parameters are molecular weight, critical temperature, critical pressure, and critical volume. The acentric factor is said to be a measure of the non-sphericity (centricity) of molecules.
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- F=-kx, where. x is the displacement of the spring's end from its equilibrium position (a distance, in SI units: meters); F is the restoring force exerted by the spring on that end (in SI units: N or kg·m/s2); and. k is a constant called the rate or spring constant (in SI units: N/m or kg/s2).
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- Lenz Law is a way to find the direction of induced current in a conducting loop. As per Faraday's Law of electromagnetic induction, a current is induced in a conducting loop by the changing magnetic flux. This induced current itself produces a magnetic field and hence a magnetic flux.
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1. 2. 1 The transÂforÂmaÂtion forÂmuÂlae Lorentz-Fitzgerald contraction is another special case of the Lorentz transformation. Assume that two stationary locations in system B are apart by a distance in the direction of relative motion. The second Lorentz transformation formula (1.6) then says how far these points are apart in system A at any given time :
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Electromagnetism The magnetic field force produced by an electromagnet (called the magnetomotive force, or mmf), is proportional to the product (multiplication) of the current through the electromagnet and the number of complete coil “turns” formed by the wire.
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- Lenz Law of Electromagnetic Induction says that-The current induced in a loop flows in such a way so as to create a magnetic field opposite to the direction of the field that caused it. It is an another application of Newton’s Third Law. Regards, Moid
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- Magnetic Field Magnetic fields are produced by electric currents, which can be macroscopic currents in wires, or microscopic currents associated with electrons in atomic orbits. The magnetic field B is defined in terms of force on moving charge in the Lorentz force law. The interaction of magnetic field with charge leads to many practical applications. Magnetic field sources are essentially dipolar in nature, having a north and south magnetic pole. The SI unit for magnetic field is the Tesla, which can be seen from the magnetic part of the Lorentz force law F magnetic = qvB to be composed of (Newton x second)/(Coulomb x meter).
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stiffness factor For a prismatic member, the stiffness factor is equal to the ratio of the product of the moment of inertia of the cross section and the modulus of elasticity for the material to the length of the member. Tools.
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magnetomotive force (magnetic potential) Magnetomotive force, also known as magnetic potential, is the property of certain substances or phenomena that gives rise to magnetic field s. Magnetomotive force is analogous to electromotive force or voltage in electricity. The standard unit of magnetomotive force is the ampere-turn (AT), represented by a steady, direct electrical current of one ampere (1 A) flowing in a single-turn loop of electrically conducting material in a vacuum . Sometimes a unit called the gilbert (G) is used to quantify magnetomotive force.
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What is hertz (unit) Hertz is a frequency measurement unit. The SI unit of frequency is a frequency equal to one oscillation or cycle per second. The unit has a special name, the hertz (Hz), after German physisist Heinrich Rudolf Hertz who first experimentally demonstrated electromagnetic theory of light.
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- • The observed speed distribution of gas molecules in thermal equilibrium is shown at right • N V is called the Maxwell-Boltzmann speed distribution function • m o is the mass of a gas molecule, k B is Boltzmann’s constant and T is the absolute temperature 2 3/2 2 /2 B 4 2 o mv k T B V m N N v e kT S S §· ¨¸ ©¹
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Custom Inductive Loads and Power Factor Loads Power Factor (PF) is defined as the cosine of angle between the inductive portion (jwl) and the resistive portion (Rs) of a coil. This angle is also called Phase Angle. In real world, Power Factor is the ratio of real power over the available power from a AC system. Real Power (in KW) is the available power to do the work, and Available Power (in KVA) is the total delivered power. The difference between Real Power and Available Power is the Reactive Power.
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- The Kp-index. The Kp-index is the global geomagnetic storm index and is based on 3 hour measurements of the K-indices, for a given value, for each of the past days. The K-index itself is a three hour long quasi-logarithmic local index of the geomagnetic activity, relative to a calm day curve for the given location.
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Hertz The hertz (symbol: Hz) is a unit derived from time which measures frequency. Frequency is how often something happens. A frequency of 1 hertz means that something happens once a second. The note Middle C (the C in the middle of the piano) is 262 Hz.
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Compressibility factor Compressibility factor. The compressibility factor (Z), also known as the compression factor or the gas deviation factor, is a correction factor which describes the deviation of a real gas from ideal gas behavior. It is simply defined as the ratio of the molar volume of a gas to the molar volume of an ideal gas at the same temperature and pressure.
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- This derivation uses the group property of the. Lorentz transformations, which means that a combination of two Lorentz transformations. also belongs to the class Lorentz transformations. The derivation can be compactly written in matrix form. However, for those not familiar. with matrix notation, I also write it without matrices.
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- One Hertz (or Hz for short) is one vibration in one second. The Hertz is named after Heinrich Rudolf Hertz (1857-1894) a German physicist and professor. Hertz proved that electricity can be transmitted in electromagnetic waves, which travel at the speed of light and which possess many other properties of light.
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- Longitudinal Magnetization. (Mz) The component of the net magnetization vector in the direction of the static magnetic field (z). After RF excitation, this vector returns to its equilibrium value at a rate characterized by the time constant T1.
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Space Environment Gravity is a fundamental underlying force in the universe. The amount of gravity that something possesses is proportional to its mass and distance between it and another object. This relationship was first published by Sir Issac Newton. His law of universal gravitation says that the force (F) of gravitational attraction between two objects with Mass1 and Mass2 at distance D is: F = G(mass1*mass2)/D squared. (G is the gravitational constant, which has the same value throughout our universe.). Einstein's theory of relativity adds to this.
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- The electric field at a given point is defined as the (vectorial) force that would be exerted on a stationary test particle of unit charge by electromagnetic forces (i.e. the Lorentz force). A particle of charge would be subject to a force.
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Acoustics First Â® Glossary of Acoustic Terms An acoustic guitar or violin body is a Helmholtz resonator. Hertz - The measuring unit of frequency or the speed of vibration of a sound wave. Synonymous with “cycles per second” (CPS).
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- The scale factor R for a given observed object in the expanding universe relative to R. One must use caution in interpreting this Hubble time since the relationship of the expansion time to the Hubble time is different for the radiation dominated era and the mass dominated era.
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What is a magnetic force? The Electromagnetic Force. One of the four fundamental forces, the electromagnetic force manifests itself through the forces between charges (Coulomb's Law) and the magnetic force, both of which are summarized in the Lorentz force law.