0
What is an evolutionary track and how can evolutionary tracks help us interpret the HR diagram?
Wiki User
∙ 14y ago
Once a main sequence star consumes the last of it's hydrogen, the loss of energy generation causes gravitational collapse. For stars with less than about 0.2 solar masses, they could become white dwarfs once nuclear fusion ceases. For stars above this threshold the hydrogen surrounding the helium core reaches sufficient temperature and pressure to undergo fusion, forming a hydrogen burning shell. Because of this change, the outer envelope of the star expands and decreases in temperature, turning it into a red giant. At this point the star has evolved off the main sequence and is entering the giant branch. The path the star now follows across the HR diagram, to the upper right of the main sequence, is called an evolutionary track. [See Link}
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How many meters on a round athletic track?
there are 2 types of tracks 400 meter tracks and 300 meter tracks.
Is tracks a proper noun or a common noun?
The noun 'tracks' is a common noun, the plural form of the noun 'track'; a general word for marks left by a moving person, animal, or vehicle; a general word for paths or trails formed by the foot traffic people or animals; a general word for metal rails that a train, trolley, or subway car rides along; a general word for prepared courses for racing; a general word for the metal bands around the wheels of a heavy vehicle; a word for any tracks of any kind.A proper noun is the name or title of a specific person, place, or thing; for example, Tracks USA (snowmobile dealer) in Lake Lillian MN or "The Tracks of My Tears", a Smokey Robinson song.The word 'tracks' is also the third person, singular of the verb to track.
How far apart should the tracks be for double track n scale?
The standard spacing for double track in N scale is approximately 1.25 inches (31.8mm) between the centerlines of the tracks. However, this can vary depending on the specific model and prototype being represented. It's always a good idea to refer to prototype specifications or recommended guidelines from the manufacturer for more accurate measurements.
Why can a train not run on flooded tracks?
The engineer can't see if the tracks are washed out. But, even if it is very shallow and he can see the tracks, the steel wheels will have little traction on the steel track when they are wet. Also, the electric traction motors on diesel and electric locomotives would short out and destory themselves if they were flooded with water, making the train powerless to move. Steam locomotives could go into flooded water up to the bottom of their firebox, but why take the chance with such pricey equipment.
If you fall into a train track would you have to touch both the rails to be electrocuted?
It is generally unsafe to be too close to railroad tracks except at marked crossings and with your full attention for oncoming trains. Do not play around train tracks at all. Standard train tracks do not carry significant power, you would not get electrocuted if you touch either or both rails. A subway train however would fry you promptly. Such was the fate of Mister Green in 'The Taking of Pelham 123.'
What is the plural noun for track?
The plural of track is tracks. For example: The train crashed as it came off the tracks.
Is tracks plural?
Yes, the noun tracks is the plural for for track.
Is tracks a verb?
Tracks is the third person singular conjugation of track. It is also the plural form of the noun track.
How many meters on a round athletic track?
there are 2 types of tracks 400 meter tracks and 300 meter tracks.
How do you spell the plural of track?
tracks
How long is a standard track and field track in the US?
Generally outdoor tracks are 400 meters and indoor tracks are 200 meters.
How long is a college track?
Track & field outdoor tracks are 400 meters long, and most indoor tracks are 200 meters.
What is the safest track in motocross?
its not that the tracks are safe or not its how safe you ride the track
How do you record a separate track to an existing track on mixcraft 5?
Each new project comes with 8 tracks. You can add new tracks to the song by clicking on the plus (+) symbol above the tracks.
Who invented the railroad track?
The first tracks were wood. Do you mean steel tracks or wood?
How do you play freerider?
freerider is a very simple game. first you create a accound then you make a track and test it if you want then you can post your track in one of these catergorys: bike tracks bmx tracks truck tracks helicopter tracks balloon tracks ??? tracks and tons of people from all around the world will play on it and leave comments about it but don't worry-no swear words,if your track is a big hit it might go into top tracks! thnx
Do stages have tracks?
What sort of track do you mean?
