Your My Hy-Vee account provides access to your history, allows you to print records, submit multiple prescriptions at once and more. Learn more. This healthy lifestyle program emphasizes eating for good health, weight loss and being physically active. Beginâ¢ is not a âdietâ- Beginâ¢ is a plan to help with lifelong wellness.
Given sufficient temperature and pressure, 4 hydrogen nuclei fuse to produce helium, at the same time giving off energy in the form of heat and light and other forms of radiation. This means that stars, with a few exceptions such as super-massive stars, last for many billions of years.
What happens when a main-sequence star exhausts its core hydrogen fuel supply? The core shrinks while the rest of the star expands. The main source of energy for a star as it grows in size to become a red giant is _____. hydrogen fusion in a shell surrounding the central core: What is a helium flash? The sudden onset of helium fusion in the core of a low-mass star