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Page "Stellar evolution" ¶ 29
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If and core
If the core becomes sufficiently dense, electron degeneracy pressure will play a significant part in stabilizing it against gravitational collapse.
If a main-sequence star is not too massive ( less than approximately 8 solar masses ), it will eventually shed enough mass to form a white dwarf having mass below the Chandrasekhar limit, which will consist of the former core of the star.
* Nonlinearity: If the current through a ferromagnetic core coil is high enough that the magnetic core saturates, the inductance will not remain constant but will change with the current through the device.
If one wants to carry two different types of traffic between the same two routers, with different treatment by the core routers for each type, one has to establish a separate MPLS path for each type of traffic.
If the master plan is successful, many commuters will travel to work in a core area nearer their homes, and the downtown area's daytime population will decrease.
If a star's core becomes stagnant ( as is thought will be the case for the Sun ), it will still be surrounded by layers of hydrogen which the star may subsequently draw upon.
If the mass of the core exceeds the Chandrasekhar limit, electron degeneracy pressure will be unable to support its weight against the force of gravity, and the core will undergo sudden, catastrophic collapse to form a neutron star or ( in the case of cores that exceed the Tolman-Oppenheimer-Volkoff limit ), a black hole.
If the base is damaged, it is common to have it repaired in order to protect the core from exposure as well as reducing friction.
If the flux in the core is purely sinusoidal, the relationship for either winding between its rms voltage E < sub > rms </ sub > of the winding, and the supply frequency f, number of turns N, core cross-sectional area a and peak magnetic flux density B is given by the universal EMF equation:
If a red giant has insufficient mass to generate the core temperatures required to fuse carbon, around 1 billion K, an inert mass of carbon and oxygen will build up at its center.
If the mass of the progenitor is above 8 solar masses but below 10. 5 solar masses, the core temperature suffices to fuse carbon but not neon, in which case an oxygen-neon – magnesium white dwarf may be formed.
If approved, OpCo will have Enron's core assets, including 15, 000 miles of pipeline assets, 75, 000 miles of distribution assets, 6, 700 megawatts of generation, and 12, 000 employees.
If this is the case, the radius of the core ( 480 km ) is about 63 % of the radius of the moon, and its mass is around 54 % of the moon's massthe proportions are dictated by the moon's composition.
If the ice contains enough ammonia or other antifreeze, Oberon may possess a liquid ocean layer at the core – mantle boundary.
* If the bit was already 0, the physical state of the core is unaffected.
* If the bit was previously 1, then the core changes magnetic polarity.
If the French crown was to bestow or grant new lands to nobles, Philip declared, they would usually be given only from the second source: this was a double-edged announcement, at once reinforcing the core, unalienable powers of the crown, whilst also reassuring nobles that their lands were sacrosanct unless they were forfeited to the crown in punishment for a crime or misdemeanour.
If an external magnetic field is now applied, it will, at a given instance in time, aid the flux in one core half and oppose flux in the other.
If the thunderstorm activity becomes deep and persistent, allowing its initial low level warm core to deepen, tropical cyclogenesis is possible.
If the goal of the reduction strategy is to produce flakes, the remnant lithic core may be discarded once it has become too small to use.
If exposed to cold and the internal mechanisms are unable to replenish the heat that is being lost, a drop in core temperature occurs.

If and star
If light moves instantaneously, the telescope does not move, and the true direction of the star relative to the observer can be found by following the line ES.
If the Byzantines adopted the crescent and star as a symbol of their city after the events of the mid 4th century BC, one is forced to wonder why they waited several hundred years before putting the symbol on only some of their coins.
If two sets are used, each player controls two differently colored sets of pieces at opposite corners of the star.
: If a planet crosses ( or transits ) in front of its parent star's disk, then the observed brightness of the star drops by a small amount.
If several planets in the same system are discovered at the same time, the closest one to the star gets the next letter, followed by the other planets in order of orbital size.
If a planet orbits one member of a binary star system, then an uppercase letter for the star will be followed by a lowercase letter for the planet.
If the parent star is a single star, then it may still be regarded as having an " A " designation, though the " A " is not normally written.
If the occulting object has an atmosphere, however, some of the luminosity of the star can be refracted into the volume of the umbra.
Anderson is best remembered as a film maker for his " Mick Travis trilogy ", all of which star Malcolm McDowell as the title character: If .... ( 1968 ), a satire on public schools ; O Lucky Man!
If the brightness of the object exceeded the maximum limit of eight times the brightness of Canopus, the spacecraft would search for a new star.
If a white dwarf has a close companion star that overflows its Roche lobe, the white dwarf will steadily accrete gas from the companion's outer atmosphere.
If the universe is static and populated by an infinite number of stars, any sight line from Earth must end at the ( very bright ) surface of a star, so the night sky should be completely bright.
If the star temperature has been determined by a majority of absorption lines, unusual absences or strengths of lines for a certain element may indicate an unusual chemical composition of the photosphere.
:: If the repeaters in a network that is based upon the physical extended star topology are replaced with hubs or switches, then a hybrid network topology is created that is referred to as a physical hierarchical star topology, although some texts make no distinction between the two topologies.
If, as has been suggested, the reference in the Talmud to " a star which appears once in seventy years that makes the captains of the ships err " ( see above ) refers to Halley's Comet, it may be a reference to the 66 CE appearance, because this passage is attributed to the Rabbi Yehoshua ben Hananiah.
If a binary star happens to orbit in a plane along our line of sight, its components will eclipse and transit each other ; these pairs are called eclipsing binaries, or, as they are detected by their changes in brightness during eclipses and transits, photometric binaries.
If components in binary star systems are close enough they can gravitationally distort their mutual outer stellar atmospheres.

If and is
If the circumstances are faced frankly it is not reasonable to expect this to be true.
If his dancers are sometimes made to look as if they might be creatures from Mars, this is consistent with his intention of placing them in the orbit of another world, a world in which they are freed of their pedestrian identities.
If a work is divided into several large segments, a last-minute drawing of random numbers may determine the order of the segments for any particular performance.
If they avoid the use of the pungent, outlawed four-letter word it is because it is taboo ; ;
If Wilhelm Reich is the Moses who has led them out of the Egypt of sexual slavery, Dylan Thomas is the poet who offers them the Dionysian dialectic of justification for their indulgence in liquor, marijuana, sex, and jazz.
If he is the child of nothingness, if he is the predestined victim of an age of atomic wars, then he will consult only his own organic needs and go beyond good and evil.
If it is an honest feeling, then why should she not yield to it??
If he thus achieves a lyrical, dreamlike, drugged intensity, he pays the price for his indulgence by producing work -- Allen Ginsberg's `` Howl '' is a striking example of this tendency -- that is disoriented, Dionysian but without depth and without Apollonian control.
If love reflects the nature of man, as Ortega Y Gasset believes, if the person in love betrays decisively what he is by his behavior in love, then the writers of the beat generation are creating a new literary genre.
If he is good, he may not be legal ; ;
If the man on the sidewalk is surprised at this question, it has served as an exclamation.
If the existent form is to be retained new factors that reinforce it must be introduced into the situation.
If we remove ourselves for a moment from our time and our infatuation with mental disease, isn't there something absurd about a hero in a novel who is defeated by his infantile neurosis??
If many of the characters in contemporary novels appear to be the bloodless relations of characters in a case history it is because the novelist is often forgetful today that those things that we call character manifest themselves in surface behavior, that the ego is still the executive agency of personality, and that all we know of personality must be discerned through the ego.
If he is a traditionalist, he is an eclectic traditionalist.
If our sincerity is granted, and it is granted, the discrepancy can only be explained by the fact that we have come to believe hearsay and legend about ourselves in preference to an understanding gained by earnest self-examination.
If to be innocent is to be helpless, then I had been -- as are we all -- helpless at the start.

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