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Page "Four-momentum" ¶ 20
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Some Related Sentences

If and these
If these people were denied a voice ( do they have a moral right to a voice??
If you cut down these horrible buildings you'll have no more traffic jams.
If art is to release us from these postulated things ( things we must think symbolically about ) and bring us back to the ineffable beauty and richness of the aesthetic component of reality in its immediacy, it must sever its connection with these common sense entities ''.
If the would-be joiner asks these questions he is not likely to be duped by extremists who are seeking to capitalize on the confusions and the patriotic apprehensions of Americans in a troubled time.
If you're lyin' out in the hammock at night, and it gets kinda cool -- you know -- you just take these sides with the fringe on -- see -- and wrap 'em right over you.
If Russian pupils have to take these languages, how come American students have a choice whether or not to take a language, but have to face so many exceptions??
If these services are to be maintained, the New York Central must have the revenues to make them possible ''.
If the resulting difference for the particular State is less or more than these extremes, the State's allotment percentage must be raised or lowered to the appropriate extreme.
If the resulting difference for the particular State is less or more than these extremes, the State's Federal share must be raised or lowered to the appropriate extreme.
If you plan to visit any of these countries, you can obtain your International Driving Permit before you leave at a nominal fee -- around $3.00.
but then Arlene got another tone in a hurry, and she said, `` If it wasn't for these dear children '' --.
If adjectival meanings show relatively low retentiveness of stems, as I am confident will prove to be the case in most languages of the world, why should our basic lists include 15 per cent of these unstable forms, but only 8 per cent of animals and plants which replace much more slowly??
If it could be shown that judgments of good and bad were not judgments at all, that they asserted nothing true or false, but merely expressed emotions like `` Hurrah '' or `` Fiddlesticks '', then these wayward judgments would cease from troubling and weary heads could be at rest.
If we were asked why we thought so, we should say that these things involve great evil and are wrong, and that to take delight in what is evil or wrong is plainly unfitting.
If there is nothing evil in these things, if they get their moral complexion only from our feeling about them, why shouldn't they be greeted with a cheer??
If the wedding party lasted late, and the travel schedule means there are only a few hours before resuming the trip or making an early start, the husband may forestall tensions and uncertainties by confiding to his bride that lying in each other's arms will be bliss enough for these few hours.
If these facilities are not at the door, getting them may cost more than you expect.
If the house is not wired adequately for electricity or if plumbing or a central heating system must be installed, check into the cost of making these improvements.
If we add to these contacts with friendly members the `` contacts with an organization of the church '' ( 11.2 per cent of the cases ), then a substantial two thirds of all recruitment is through friendly contact.
If we have not thought and made a decision entirely in these terms, then we need to submit ourselves to the following `` simple test '': `` Have we decided how we are to kill the other members of our household in the event of our being less injured than they are ''??
If I could put your body in an imaginary atomic press and squeeze you down, squeeze these holes out of you in the way we squeeze the holes out of a sponge, you would get smaller and smaller until finally when the last hole was gone, you would be smaller than the smallest speck of dust that you could see on this piece of paper.
If unchallenged, these decisions have the power to settle more minor legal disputes once and for all.
If these allegiances come into conflict, he or she may be guilty of treason against one or both.
If the demands of these two sovereigns upon his duty of allegiance come into conflict, those of the United States have the paramount authority in American law ; likewise, those of the foreign land have paramount authority in their legal system.

If and particles
If such is the case, the particles within a distance of about Af of the Earth will have, relative to the Earth, a kinetic energy less than their potential energy and they will be captured into orbits about the Earth.
If one assumes that the average flux did not change between measurements, a mass-distribution curve is obtained which relates the flux of particles larger than a given radius to the inverse 7/2 power of the radius.
If substances emitting alpha particles are ingested, inhaled, injected or introduced through the skin, then it could result in a measurable dose.
If the gas is inhaled, some of the radon particles may attach to the inner lining of the lung.
If a particle and antiparticle are in the appropriate quantum states, then they can annihilate each other and produce other particles.
If a system consists of several particles, the total angular momentum about a point can be obtained by adding ( or integrating ) all the angular momenta of the constituent particles.
If attractive forces ( such as van der Waals forces ) prevail over the repulsive ones ( such as the electrostatic ones ) particles aggregate in clusters.
If light consisted strictly of ordinary or classical particles, and these particles were fired in a straight line through a slit and allowed to strike a screen on the other side, we would expect to see a pattern corresponding to the size and shape of the slit.
If a ray tracing is then made as if a light wave ( as understood in classical physics ) is wide enough to take both paths, then that ray tracing will accurately predict the appearance of maxima and minima on the detector screen when many particles pass through the apparatus and gradually " paint " the expected interference pattern.
If an elementary particle truly has no substructure, then it is one of the basic building blocks of the universe from which all other particles are made.
If Lorentz symmetry can cease to be a fundamental symmetry at Planck scale or at some other fundamental scale, it is conceivable that particles with a critical speed different from the speed of light be the ultimate constituents of matter.
If the entire volume of the observable universe ( taken to be 3 × 10 < sup > 80 </ sup > m < sup > 3 </ sup >) were packed solid with fine dust particles about 1. 5 micrometres in size, then the number of different ways of ordering these particles ( that is, assigning the number 1 to one particle, then the number 2 to another particle, and so on until all particles are numbered ) would be approximately one googolplex.
If the right size particles were chosen, however, the result was a great improvement in power.
If differences exist, we can distinguish between the particles by measuring the relevant properties.
If the particles are indistinguishable, this is impossible by definition ; either particle can be in either state.
If the particles are bosons, they occupy a totally symmetric state, which is symmetric under the exchange of any two particle labels:
If the particles are bosons ( fermions ), the state after the measurement must remain symmetric ( antisymmetric ), i. e.
If the particles have the same physical properties, the n < sub > j </ sub >' s run over the same range of values.
If the particles are identical, this equation is incorrect.
If A and B are distinguishable particles, then the composite system has four distinct states:,,, and.
In a flat d-dimensional space M, at any given time, the configuration of two identical particles can be specified as an element of M × M. If there is no overlap between the particles, so that they do not interact ( at the same time, we are not referring to time delayed interactions here, which are mediated at the speed of light or slower ), then we are dealing with the space

0.138 seconds.