Prometric - My name is Emerica and I have taken 2 exams with you. My name is Emerica and I have taken 2 exams with u and I really like to contact you about other programs that are done in your program. I want to know if you have institute or college that offers nursing programs, if so, what's the requirements.
As the gas falls together, it gets hot. A star forms when it is hot enough for nuclear reactions to start. This releases energy, and keeps the star hot. Gravity pulls the dust and gas together. During its 'main sequence' period of its life cycle, a star is stable because the forces [force: A push or a pull.The unit of force is the newton, 'N'. ] in it are balanced.The outward pressure from the expanding hot gases is balanced by the force of the starâs gravity. Our Sun is at this stable phase in its life.uring its 'main sequence' period of its life cycle, a star is stable because the forces [force: A push or a pull. The unit of force is the newton, 'N'. ] in it are balanced. The outward pressure from the expanding hot gases is balanced by the force of the starâs gravity. Our Sun is at this stable phase in its life.
But if the star has about 1.3 times the mass of the Sun, it undergoes a carbon-nitrogen-oxygen cycle to convert hydrogen to helium. How long this newly formed star will last depends on its mass and how quickly it consumes hydrogen. Small red dwarf stars can last hundreds of billions of years, while large supergiants can consume their hydrogen within a few million years and detonate as supernovae. But how do stars explode and seed their elements around the Universe? Thatâs another episode. We have written many articles about star formation on Universe Today.