Аудирование в формате ЕГЭ - Вариант 3

"There are still many people who are very suspicious of vaccines in general." However, he added, Putin's decision last week to roll up his sleeve to receive one of three Russian-made formulas that have been shown to protect against coronavirus may turn the tide of public opinion.What kind of gas cloud is most likely to give birth to stars? a cold, dense gas cloud. What effect are magnetic fields thought to have on star formation in molecular clouds? They can help resist gravity, so that more total mass is needed before the cloud can collapse to form stars.What kind of gas cloud is most likely to give birth to stars? An expanding cloud of remains from a star that died in a supernova. Humans on Earth witnessed the explosion in 1054 A.D.This question gives you the opportunity to highlight any skills that would specifically benefit you in this job. Use the STAR method to describe a situation you faced at work, how you used your skills to approach it and what kind of outcome you received. STAR stands for Situation, Task, Action and...There are still many things that Peter Cooke would like to try his hand at - paper-making and For guests, though, it is the other technology offered in their rooms which is most likely to find favour. Five-star luxury meets up-to-date technology. The five-star Merrion Hotel, which has just opened, is...

ch 16 astronomy Flashcards | Quizlet

Kangaroos give birth at any time through the year, but they are more likely to give birth when food is plentiful. Cloud computing papers are papers that give the basic definition of cloud computing and explain it. Cloud computing is just a way that involves connectivity to the internet.So, we start with a cloud of diffuse gas. And if gravity pulls it together and reduces its volume, that effect does indeed reduce its entropy, just like So case 2: If the gravitational potential energy is more than the kinetic energy, then the temperature effect dominates, and the entropy maximising thing to......likely to give birth to stars Selected Answer Answers a cold dense gas cloud a cold low-density dense gas cloud a hot, low-density gas cloud Question 2 2 out of 2 points Suppose that the star Answers: Because the supernova destroys the star, Betelgeuse would suddenly disappear from view.It was my grandma's birthday yesterday and she asked me to drive her to the medical centre today. Today we have asked 5 people to give us a short interview and share their opinions about doing homework.

Free Earth Science Flashcards about Astr. 101 Test 3

Stars are formed in giant molecular clouds, called "star nurseries". These are cold and dense regions, and the gas cloud collapses, forming a protostar. The protostar gradually heats, powering nuclear reactions in its center, which increases the temperature even more and giving birth to a star.By looking at many stars and measuring the reddening toward each one, a map of the dust distribution can be built up. Answer: Gas in a protostellar disk will orbit like planets, with the innermost particles moving faster than outer ones. This causes friction and therefore heating of the gas which therefore...What kind of sugar do you buy? — Brown (one/sugar); I drink coffee with it. The club (opening/opened) in our school at the moment is likely to be popular. 5. The sounds (coming/come) from the classroom next door were not easy to identify.Many scouting web questions are common questions that are typically seen in the classroom, for homework or on quizzes and tests. Flashcards vary depending on the topic, questions and age group. The cards are meant to be seen as a digital flashcard as they appear double sided, or rather hide the...My personal opinion is most likely working together with either of them, Elon has expressed interest in They refuse to care or learn!! But at least they saw how much it means to me, and eventually gave me It is kind of fun to get trashed on for making what seems like a solid trade at $120 a few weeks...

QueryAnswer (The Sun) Nuclear Fusion of hydrogen into helium happens within the _________. Core(The Sun) Energy moves in the course of the Sun's __________ by means of way of the emerging sizzling gas and falling of cooler gas. Convection Zone(The Sun) Nearly all the seen gentle we see from the sun is emitted from the _________. Photosphere(The Sun) Most of the Sun's ultraviolet gentle is emitted from the slim layer known as the _________ where temperature will increase with altitude. Chromosphere(The Sun) We see the Sun's ______ most simply all through general solar eclipse's. Corona(The Sun) The _____________ is the layer of the Sun between its core and convection zone. Radiation zoneWhich of the following adjustments would reason the fusion charge within the Sun's core to increase? An building up within the core temperature will increase the fusion rate for the reason that fusion charge is very sensitive to temperature. A decrease in the core radius causes the core to warmth up and increase in density, which therefore leads to an greater fusion rate.Suppose you must someway start nuclear fusion in a box that stayed the same measurement. Increasing the fusion charge would motive the temperature throughout the field to _____. Increase. What equilibrium for the core of a celebrity way The core of a celebrity is in equilibrium when its temperature, size, and the velocity of nuclear fusion all dangle steady.If you heat up a balloon, what happens to it? The gas particles within it move quicker, causing it to increase until it stabilizes at a brand new, higher dimensionHow the fusion fee is represented The fusion rate is greater when debris combine in combination more steadily. In this animation fusion is represented by two particles combining together and a flash of light, and the fusion charge is represented through the peak of the bar graph.Which of the following should occur for a celeb's core to achieve equilibrium after an initial change in fusion fee? If the fusion charge to begin with will increase, then the core expands. If the fusion price to begin with decreases, then the core contracts.The Sun's photosphere is __________. the visible surface of the Sun The phrase corona, as within the Sun's corona, method _____ The corona is the "crown" of the Sun, meaning it sits above all different layers of the Sun.How does the density of Earth's surroundings alternate with altitude? As you move upward in altitude through Earth's surroundings __________. the density ceaselessly decreasesHow do we observe other layers of the Sun's atmosphere? We use visible-light telescopes to practice the photosphere, ultraviolet telescopes to practice the chromosphere, and X-ray telescopes to apply the corona.When we apply the Sun with an X-ray telescope, we see the _____. The corona is the only layer of the Sun's environment scorching sufficient to emit X rays. Now, take into account that hotter gadgets emit higher-energy radiation, The layer of the Sun's environment that is absolute best noticed with an ultraviolet telescope is the _____. (The chromosphere) is hot sufficient to emit ultraviolet gentle but now not sizzling enough to emit X rays.Before we can use parallax to measure the gap to a close-by celebrity, we first want to know __________. The Earth-Sun DistanceWhich of the next is a sound method of demonstrating parallax for yourself? Hold up your hand in entrance of your face and alternately close your left and proper eyes.What is the cause of stellar parallax? Stellar Parallax is led to by means of the Earths orbit around the solar.The more far-off a celeb, the __________. the smaller its parallax attitude.Approximately what is the parallax perspective of a celebrity that is 20 light-years away? 0.16 arcseconds Suppose a celebrity's parallax is 0.1 arc-seconds. How a long way away is it? Use the formula D=1/p Plug in for p the price 0.1 arc-seconds Thus, D=1/0.01 = 10 parsecs The superstar is subsequently 10 parsecs clear of us. Suppose that a celebrity had a parallax attitude of exactly 1 arcsecond. Approximately how a long way away would it not be, in light-years? 3.3 Light Years.Which of the following is the most efficient solution to the query, "Why does the Sun shine?" As the Sun was forming, gravitational contraction greater the Sun's temperature until the core grow to be sizzling enough for nuclear fusion, which ever since has generated the warmth that makes the Sun shine. Which of the following highest describes why the Sun emits most of its calories within the shape of seen gentle? Like all objects, the Sun emits thermal radiation with a spectrum that will depend on its temperature, and the Sun's floor temperature is good for emitting most commonly visible gentle.Every 2nd, the Sun converts about 600 million lots of hydrogen into 596 million tons of helium. The remaining 4 million heaps of mass is ________. are converted to an quantity of energy equivalent to 4 million heaps times the rate of light squaredSunspots are cooler than the encircling gas in the photosphere as a result of sturdy magnetic fields slow convection and prevent hot plasma from entering the region. What do sunspots, photo voltaic prominences, and solar flares all have in not unusual? They are all strongly influenced via magnetic fields on the Sun. If the star Alpha Centauri have been moved to a distance 10 instances farther than it is now, its parallax attitude would Get Smaller.Star A is similar to Star B, except that Star A is twice as far from us as Star B. Therefore: Both stars have the similar luminosity, however the obvious brightness of Star B is 4 occasions that of Star A. What do we'd like to measure in order to resolve a celebrity's luminosity? apparent brightness and distance The total quantity of power (in watts, for example) that a famous person radiates into house is known as its _______ LuminosityWhat two items of knowledge would you want so as to measure the masses of stars in an eclipsing binary gadget? The time between eclipses and the typical distance between the starsCompared to a main-sequence star with a short lifetime, a main-sequence megastar with a long lifetime is __________. less luminous, cooler, smaller, and not more massiveCompared to a high-luminosity main-sequence superstar, stars in the upper right of the H-R diagram are __________. cooler and bigger in radiusCompared to a low-luminosity main-sequence big name, stars within the decrease left of the H-R diagram are __________. hotter and smaller in radiusWhich of those stars is the most huge? a) a main-sequence A celebrity b) a main-sequence G famous person c) a main-sequence M famous person A Main series star.The mnemonic "Oh be a fine girl kiss me".The letters from hottest (due to this fact most huge) to coolest. A comes ahead of G, which comes before M. So usually, A stars are more large than G stars, that are more massive than M starsWhich of those stars has the longest lifetime? a) a main-sequence A star b) a main-sequence G celebrity c) a main-sequence M famous person The chillier the superstar, the longest lived. Hottest are O, coldest are M (here is, once more, the order): O B A F G Ok M with M being the coldest, so those are the longest living ones.We trust that the fashion is correct because it agrees with the observed characteristics of the Sun. Which of the next observations can be utilized to take a look at that we in reality do know the Sun's inner fusion charge? Measurements of the Sun's overall energy output into space, and Observations of neutrinos coming from the Sun.what is a celebrity clusters that is the oldest? a cluster whose brightest main-sequence stars are yellowThe age of stars in a cluster may also be decided through figuring out the major series turnoff level. within the H-R diagramYou observe a celeb cluster with a main-sequence turn-off level at spectral kind G2 (the same spectral sort because the Sun). What is the age of this famous person cluster? 10 billion years. Assuming that we will measure the apparent brightness of a star, what does the inverse sq. regulation for mild allow us to do? Calculate the celebrity's luminosity if we all know its distance, or calculate its distance if we all know its luminosityCarbon fusion occur in high-mass stars but now not in low-mass stars as a result of ________. the cores of low-mass stars by no means get scorching enough for carbon fusion What kind of gas cloud is most likely to give birth to stars? a cold, dense gas cloud The following figures display various phases all through the life of a celebrity with the same mass because the Sun. Rank the phases in response to once they occur, from first to ultimate A one-solar-mass famous person spends about ten billion years as a hydrogen-burning main-sequence superstar, making this by means of some distance the longest stage of its life. 1. Cloud of dust, 2. Protostar, 3. main series megastar, 4. Red Giant, 5. Planetary Nebula, 6. White Dwarf. Provided following are various components that may be produced all the way through fusion in the core of a excessive mass leading collection celebrity. Rank these parts based on when they are produced, from first to ultimate. 1. Helium, 2. Carbon, 3. Oxygen, 4. IronHigh mass stars:- *past due in lifestyles fuse carbon into heavier components *finish life as a supernova *have increased fusion rate during main sequence lifeLow mass stars:- *The solar is an instance *Final corpse is a white dwarf *have longer lifetimes *finish lifestyles as planetary nebulaWhat happens when a main-sequence big name exhausts its core hydrogen gas supply? The core shrinks whilst the remainder of the megastar expands.Why is iron significant to working out how a supernova happens? Iron can not free up calories both by way of fission or fusion.Algol consists of a 3.7 M Sun main-sequence superstar and a zero.Eight M Sun subgiant. Why does this appear surprising, a minimum of at first? The two stars must be the similar age, so we'd be expecting the subgiant to be more huge than the main-sequence megastar. How will an isolated, one solar-mass star die? As a white dwarf If any person somehow added a lot more hydrogen and helium to the Sun (say 50% more than it has now), what would happen to it? It would start to evolve a lot more briefly than it is now.The luminosity of light emerging from the big name's gaseous surface is equivalent to the . . . charge of calories generated from nuclear reactions in the superstar's core.Main Sequence An space on the Hertzsprung-Russel diagram that runs from lower left to decrease right and contains extra then 90% of all stars.Main-sequence section surface radiates energy at same rate that core generates energy lasts about 10 billion years calories generated by way of nuclear fusionHow much more abundant is hydrogen within the universe than nitrogen? Hydrogen is 10,000 occasions more abundant than nitrogen. Notice that the dot for nitrogen is at 10-4 = 1/10,000 at the vertical (abundance) axisThe well-known Crab Nebula. What is it? An expanding cloud of remains from a celebrity that died in a supernova. Humans on Earth witnessed the explosion in 1054 A.D.a supernova within the photograph at the right. What are we able to conclude about this superstar? It was a high-mass megastar with a minimum of Eight times the mass of the Sun. Only high-mass stars explode as supernovae.the 1987 explosion of a giant bluish megastar in the Milky Way galaxy's greatest satellite galaxy, the Large Magellanic Cloud, a luminous blob that is easily visible south of the equator. appeared like a unmarried megastar in the night sky. The measurement of the blob in the picture is an artifact of the images; the superstar is up to now away that even as it explodes it will seem as some extent of gentle now not at the same time as bright as some within reach stars in night time sky.A regular white dwarf is _________. As huge as the solar however best as massive as in measurement as the Earth.Suppose that a white dwarf is gaining mass via accretion in a binary gadget. What happens if the mass at some point reaches the 1.Four solar mass restrict? The white dwarf will explode completely as a white dwarf supernova.Pulsars are concept to be _________. Rapidly rotating neutron stars.Imagine that our Sun have been magically and all at once changed by means of a black hollow of the similar mass (1 solar mass). What would happen to Earth in its orbit? Nothing—Earth's orbit would remain the similar. The white dwarf that continues to be when our Sun dies will likely be mostly made of ________. CarbonWill our Sun ever undergo a white dwarf supernova explosion? Why or why now not? No because it is not orbited via any other megastar.What can we mean via the event horizon of a black hollow? It is the purpose beyond which neither light nor anything can break out the black hole's gravity.The Schwarzschild radius of a black hole relies on ________. is proportional to the mass, Sr=2Gm/c2 White Dwarf Supernova Traits. Star explodes totally,leaving no compact object bejind. Can simplest occur in a binary system. Can happen in an excessively previous superstar cluster. Has a brighter height luminosity. Spectra all the time lack strong hydrogen traces.Massive famous person Supernova Black hole or neutron famous person left at the back of. Can most effective happen in a galaxy with ongoing star formation.In common, we can come across a black hole left behind by a lifeless big name __________. only if mass is being transferred to it through some other big name. In different phrases, we an typically hit upon black holes (of stellar mass) most effective in binary systems with mass switch.The radius of a white dwarf is made up our minds by way of a balance between the inward power of gravity and the outward push of _______. Electron Degeneracy pressureA(n) ________ occurs when hydrogen fusion ignites on the surface of a white dward in a binary gadget NovaA(n) _______ occurs when fusion creates iron within the core of a celeb. Massive megastar SupernovaA white dwarf in a detailed binary gadget will explode as a supernova if it gains enough mass to exceed the _________. White dwarf restrict (1.4 photo voltaic lots) A(n) ________ is composed of sizzling, swirling gas captured by a white dwarf (or neutron star or black hole) from a binary better half megastar. accretion diskA(n) __________ can occur only in a binary device, and all such events are thought to have the same luminosity white dwarf supernova.Which has the smallest radius: A 1.2Msun white dwarf, a nil.6Msun white dwarf, or jupiter? Jupiter is a long way greater than the other two. White dwarfs will also be treated as Fermi gasses, and feature the attention-grabbing assets that as their mass increases their radius decreases. So the smallest is in reality the 1.2 solar mass white dwarf.A regular neutron megastar is extra large than our Sun and concerning the measurement (radius) of _________. a small asteroid (10 km in diameter)What makes us think that the big name device Cygnus X-1 incorporates a black hollow? It emits X rays function of an accretion disk, however the unseen famous person in the system is too large to be a neutron star.The following very best describes why a white dwarf can not have a mass greater than the 1.4-solar-mass prohibit? Electron degeneracy force relies on the speeds of electrons, which way the velocity of gentle as a white dwarf's mass approaches the 1.4-solar-mass restrict.According to our trendy understanding, what is a nova? an explosion on the surface of a white dwarf in a detailed binary gadgetWhich of the next statements about electron degeneracy force and neutron degeneracy drive is true? Electron degeneracy power is the key source of power in white dwarfs, while neutron degeneracy power is the most important source of force in neutron stars.How would a flashing crimson light seem as it fell into a black hollow? Its flashes would shift to the infrared section of the spectrum. Gradually turning into "redder"White dwarf traits (a) May be surrounded by means of a planetary nebula. Emits strongly in seen and ultraviolet, and is also in a binary device that undergoes nova explosions.Neutron superstar (characteristics) May be in a binary system that undergoes x-ray bursts. Can have a mass of 1.Five photo voltaic lots, is also surrounded by means of a supernova remnant, may be many times dim and brighten more than as soon as according to 2d.Black Hole simplest can have a mass of countless solar mass, it is additionally detectable provided that it is accreting gas from other gadgets.An X-ray binary is a binary big name machine through which gas from an unusual celebrity is accreting onto a compact object. The accreting gas emits X rays as it __________. is very popular. The gas becomes sizzling as it converts a lot of gravitational potential energy into heat as it falls toward a particularly compact object, such as a neutron superstar or a black hollow.Description of a white dwarf A white dwarf is the recent, compact corpse of a low-mass celebrity, typically with a mass similar to the Sun compressed to a volume the scale of the Earth.Description of a neutron famous person A neutron superstar is the compact corpse of a high-mass star left over after a supernova. It most often accommodates a mass related to the mass of the Sun in a quantity just a few kilometers in radius.Description of a black hole an object wherein gravity has conquer all sources of drive strengthen, inflicting collapse without end. Its tournament horizon is where from inside which no knowledge can go away the BH. Schwarzschild radius of BH defines the "dimension" of the event horizon.