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When fusion is unable to supply further energy in a massive star?
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Explain the role of helium in stars?
The nuclear fusion of hydrogen produces helium and energy at the cost of some mass following the conversion rate e=mc^2
What is a renewable energy resouce that is used to power the hubble space telescope?
HST runs on electricity supplied by massive Power Supply Units, which get their electricity from the 2 huge Solar Panels on either side of the spacecraft.
When do stars burn out?
Simply stated, stars burn out when they run out of fuel. Stars fuse lighter nuclei into heaver nuclei, and they will turn hydrogen into helium, and then turn helium into heavier elements toward the end of their life. Through what is called stellar nucleosynthesis, fusion continues to create heavier elements. And as the stars ages (stellar evolution), it will eventually reach a point where it is forming iron. This is where things get difficult for the star.All the fusion reactions that create the elements up through iron release energy. Fusion reactions that create the trans-iron elements require energy to be put into the reaction. Where does this energy come from? Let's review the idea that the massive gravity of stars is always trying to cause them to collapse in on themselves. The energy released in fusion forces the material of the star outward, and these two forces struggle in equilibrium throughout the life of the star.At the end of a star's life, if the star is sufficiently large, when it collapses because it is running out of fuel, it will supply enough energy in the collapse to cause the fusion of elements heavier than iron, and this is the supernova event. A star of insufficient mass will simply collapse and end up a white dwarf. Larger stars might go nova and end up as a white dwarf, a neutron star, or as a black hole (for the really big stars).
What does the sun supply to a leaf?
Light energy.
What makes a fusion stop in the main sequence stage?
A star falls of the main sequence when it has exhausted it's supply of hydrogen.
Can Nuclear fusion solve our energy supply?
yes
What percent of the US' energy does nuclear fusion supply?
The nuclear fusion is not used now as a source of energy; probable possible in a far future.
Is fusion reaction limitless?
Fusion reactions are not limitless. The fusion process can exhaust the supply of fuel and cause fusion to stop. Additionally, there are fusion processes that are not exothermic, but are endothermic and require energy to be put in to sustain them. Without the requisite input energy, fusion ceases.
What would be the advantages in using nuclear fusion to supply our energy needs in the future?
minecraft mine and CRAFT!
Hypothesize what will happen when the sun exhausts it's supply of hydrogen?
When a main sequence star, such as our sun, exhausts it's supply of Hydrogen, fusion of Hydrogen to Helium ceases in the core. This results in cooling of the core and therefore causes it to contract. As the core contracts, the layers surrounding the star gain kinetic energy until the fusion of Hydrogen is possible in the outer layers. As these layers undergo fusion, they increase in temperature dramatically. The outer layers expand due to heat, and the star becomes massive; the main sequence star has evolved into a red giant. Fusion of Hydrogen to Helium continues in the outer layers, whilst the fusion of heavier elements such as carbon occurs in the core.
Why is sun fusion important?
Because it is the supply of energy that keeps us alive, and in fact makes the earth able to support life at all
Can nuclear fusion continue indefinitely?
Nuclear fusion, like any process of producing power, uses fuel in doing so. In the stars, where fusion is the source of their energy, hydrogen is being used in fusion, producing helium plus energy. In any star the supply of hydrogen will eventually run out and the star will die, but its lifetime will be immensely long, many billions of years. On earth, if fusion can be made to work, it will use isotopes of hydrogen which are abundant, so as a source of energy it would last for many thousands of years.
An energy source that has limitless supply?
The sun most evidently. The world's oceans contain an almost limitless amount of deuterium (heavy water) which could one day be used for energy from nuclear fusion, when scientists and engineers have learned how to do it.
What changing mass is the sun's supply of energy?
It converts Hydrogen to Helium by nuclear Fusion, eventually when hydrogen runs out it will convert helium to a heavier element and so on till it burns out and dies
Do carbohydrates supply energy and fiber in plant cells?
They supply energy but not fibre.
What does the sunflower supply energy for in the energy pyramid?
They supply energy for humans, since we eat sunflower seeds.
How biogas can supply farmers with energy they need?
by the forms of energy the biogas supply farmers with the energy they need.
