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13 November, 01:35

2. Why is nuclear fusion able to sustain the life of a star over a long period of time without the input of outside energy?

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Answers (2)
  1. 13 November, 04:26
    0
    By nuclear fusion the nuclei of the star masses fuse into each other producing a high energy that creates an outward pressure which releases in the space as electromagnetic radiation that keeps the star alive.

    Explanation:

    As the gravitational pull gathers gas and dust and forms a huge ball, the temperature of the ball increases immensely causing a nuclear fusion. Through this fusion the contraction in the gas and dust increases ultimately crashing the nuclei of the electrons into each other and fusing them.

    A great amount of energy is released in the process that creates a pressure outwardly and balances the inward gravity. When this energy moves out of the outer layer and reaches space it creates electromagnetic radiation that makes the star bright and intact in their position.
  2. 13 November, 04:56
    0
    Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles (neutrons or protons). The difference in mass between the reactants and products is manifested as either the release or absorption of energy.
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