Flashcards - Chapter 12 ~ Master News

Which two processes can generate energy to help a star maintain its internal thermal pressure? If a neutron star or black hole is accreting material from its companion in a close binary, which of the following observatories would offer us the best chance for discovering this fact?C) Thermal energy is converted to radiative energy via molecular collisions and released as photons. 30) When does hydrogen first begin to fuse into helium in the star formation process? Answer: A cloud collapses and ultimately forms stars when gravity overcomes thermal pressure.Hence, the specific internal energy of an ideal gas is not a function of its specific volume (or density). Consider an arbitrary engine A (other than Carnot engine) that operates between two thermal reservoirs maintained at fixed temperatures; see Fig.2) Which two energy sources can help a star maintain its internal thermal pressure? B) Degeneracy pressure can halt gravitational contraction of a star even when no fusion is occurring in the core.Which two processes can generate energy to help a star maintain its internal thermal pressure? Nuclear fusion and gravitational contraction. Our Sun is considered to be a low-mass star. Which process is required to allow a gravitationally-collapsing gas cloud to continue to collapse?

16_Testbank | Stars | Star Formation

A thermal generation plant is a type of plant where a turbine that is powered by steam under The pressure exerted by underground water currents is the process used in large ships as In dams, electricity is generated by releasing a controlled flow of high-pressure water through a forced conduit.Can two characters of the same element activate an Elemental Resonance in Co-Op Mode? Yes. "Cryo attacks can destroy Pyro Abyss Mage shields at the same rate as Hydro attacks" — is Holding Venti's Elemental Skill allows him to generate a wind current which can be used to perform Plunging Attacks.Most generators convert heat energy (from burning fuel) into electrical energy. Some generators exploit such natural resources as sunlight or wind to obtain electrical energy. The substance's temperature and the pressure it is under affect its kinetic energy; so does the volume of its container.Which two energy sources can help a star maintain its internal thermal pressure? Helium fusion in the core generates enough thermal pressure to push the upper layers outward. The helium fusion process results in the production of.

Specific Internal Energy - an overview | ScienceDirect Topics

Q. Holding Venti's Elemental Skill allows him to generate a wind current which can be used to perform Plunging Attacks. Interacting with the statue of seven. Q. What is the maximum number of Electro Sigils that Razor's Elemental Skill, Claw and Thunder, can generate?Which two energy sources can help a star maintain its internal thermal pressure? nuclear fusion and gravitational contraction. 19. No stars are expected with masses greater than 150 times our Sun because. they would generate so much power that they would blow themselves apart.Power-technology.com examines the energy source and its pros and cons. Geothermal energy is the heat that comes from the sub-surface of the earth. Flash plants use high-pressure hot water into cool, low-pressure water whilst binary plants pass hot water through a secondary liquid with a lower...Fusion reaction happen on star such as sun where hydrogen combine to form He a fusion reaction releasing energy and gravitational contraction occur due to very high gravitational pull.Tidal energy can be generated in two ways, tidal stream generators or by barrage generation. Although not yet widely used, tidal power has potential for future electricity generation. Tides are more predictable than wind energy and solar power.

Take Quiz

the interstellar clouds referred to as molecular clouds are _____.

the cool clouds in which stars form.

What is a protostar?

A star the continues to be in the technique of forming.

Most interstellar clouds remain stable in size for the reason that power of gravity is adverse through _____ throughout the cloud.

Thermal pressure.

which a part of the electromagnetic swpectrum generally provides us our perfect views froming in dusty clouds?

Infrared.

what kind of gasoline cloud is perhaps to give delivery to stars?

A cold, dense fuel cloud.

What phenomena is not frequently associated with the star formation procedure?

Intense ultraviolet radiation coming from a protostar.

When does a protostar transform a main-sequence star?

When the velocity of hydrogen fusion becomes excessive enough to steadiness the speed at which the star radiates energy into house.

Approximately what core temperature is required before hydrogen fusion can start in a star?

10 million K.

Which star spends the longest timein the protostellar segment of lifestyles?

A 1 photo voltaic mass star.

What is the approximate vary of masses that new child leading sequence stars can have?

0.1 to a hundred and fifty solar lots.

The forged majority of stars in a newly shaped star cluster are _____.

Less large than the Sun.

What remark about brown dwarfs is not true?

Brown dwarfs sooner or later collapse to transform white dwarfs.

What can we learn about a star form a lifestyles monitor on an H-R diagram?

The surface temperature and luminosity the star will have at each and every stage of its existence.

List the phases of life for a low-mass star in the correct order?

Protostar, main-sequence star, crimson large, panetary nebula, white dwarf.

What occurs when a main-sequence star exhausts its core hydrogen gasoline supply?

The core shrinks whilst the remainder of the star expands.

The main supply of energy for a star because it grows in dimension to become a red large is _____.

Hydrogen fusion in a shell surrounding the central core.

The total helium fusion reaction is:

Three helium muclei fuse to form one carbon nucleus.

What is a helium flash?

The sudden onset of helium fusion in the core of a low-mass star.

What is a planetary nebula?

Gas ejected from alow-mass star within the final stage of its life.

The ultimate fate of our solar is to _____.

Become a white dwarf that can slowly cool with time.

What is the CNO cycle?

A collection of steps via which four hydrogen nuclei fuse into one helium nucleus.

In order to predict whether a star will sooner or later fuse oxygen into a heavier component, you principally want to know what truth in regards to the star?

Its mass.

Why is iron significant to figuring out how a supernova happens?

Iron can not unlock energy both by means of fission or fusion.

After a supernova explosion, the stays of the stellar core _____.

May be either a neutron star or a black hole.

Why is supernova 1987A particularly necessary to astronomers?

It is the nearest supernova to have occured at a time when we have been in a position to finding out it moderately with telescopes.

Algol include a 3.7 MSun main-sequence star and a 0.8 MSun subgiant. Why does this seem unexpected, a minimum of at first?

The two begins must be the same age, so we would be expecting the subgiant to be more massive than the main-sequence star.

Which two processes can generate energy to help a star maintain its internal thermal pressure?

Nuclear fusion and gravitational contraction.

Our Sun is thought of as to be a _____.

Low-mass star.

What process is needed to allow a gravitational-collapsing fuel cloud to proceed to cave in?

The cloud will have to radiate a lot of its thermal energy.

Angular momentum performs a very powerful position in star formation. What function of a protostellar gadget might not be strongly suffering from the star's angular momentum?

The onset of core hydrogen fusion.

How does the outside tempurature and luminosity of a protostar compare to the outside tempurature and luminosity of the main-sequence star it becomes?

A prime-sequence star is hotter and dimmer than it was once as a protostar.

Consider a large molecular cloud that will give start to a cluster of stars. What would you are expecting to be true?

a few massive stars will shape, reside, and die ahead of nearly all of the star's clusters even whole their protostar degree.

We do not know for certain whether or not the overall traits we practice in stellar delivery plenty additionally observe to brown dwarfs. But if they do, then which of the following could be true?

Brown dwarfs would outnumber all unusual stars.

Where would a brown dwarf be positioned on an H-R diagram?

Below and to the appropriate of the lowest part of the main-sequence.

Which of the next sorts of data supply proof that is helping us perceive the existence tracks of low-mass stars?

H-R diagrams of globular clusters.

why is a 1 solar-mass crimson large extra luminous than a 1 solar-mass leading series star?

Fusion reactions are generating energy at a better rate within the red massive.

Carbon fusion happen in high-mass stars but not in low-mass stars because _____.

The cores of low-mass stars by no means get hot sufficient for carbon fusion.

What statement about more than a few phases of core nuclear burning in a high-mass star is not true?

Each successive stage lasts for about an identical quantity of time.

What tournament marks the beginning of a supernova?

The surprising cave in of an iron core into a compact ball of neutrons.

Suppose that the star Betelgeuse were to supernova tomorrow. What would it not look like to the bare eye?

Betelgeuse would remain a dot of sunshine, but would abruptly develop into so bright, that for a few weeks, we'd be in a position to see this dot in the sunlight hours.

Observations show that parts with atomic mass numbers divisble by means of 4 have a tendency to be extra ample within the universe than components with atomic mass numbers in between. Why do we think this is the case.

At the top of a high-mass star's life, it produces new components through a sequence of helium capture reactions.

A spinning neutron star has been seen on the middle of a _____.

Supernova remnant.

What is more commonplace: a star blows up as a supernova, or a star bureaucracy a planetary nebula/white dwarf system?

Planetary nebula formation is more not unusual.

You discover a binary star gadget in which one star is a 15 MSun main-sequence star and the opposite is a 10 MSun large. How do we think that a star system equivalent to this might have come to exist?

The massive should once had been the extra large star, however is now less massive because it transferred a few of its mass to its companion.