Life cycle of a star Stars are born in nebulae. Huge clouds of dust and gas collapse under gravitational forces‚ forming protostars. These young stars undergo further collapse‚ forming main sequence stars. Stars expand as they grow old. As the core runs out of hydrogen and then helium‚ the core contacts and the outer layers expand‚ cool‚ and become less bright. This is a red giant or a red super giant (depending on the initial mass of the star). It will eventually collapse and explode. Its fate
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Part 7 The life cycle of a star How does gravity‚ nuclear fusion and mass affect the life cycle of a different sized stars? * Stars initially form from clouds of dust and gas. The force of gravity makes the gas and dust spiral in together to form a protostar. Gravitational energy has converted into heat energy‚ so the temperature rises * When the temperature gets high enough‚ hydrogen nucli undergo thermonuclear fusion to form helium nuclei and give out massive amounts of heat and light
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01) The Cell Structure and function Abstract In this lab the structures of various cells were viewed through a compound microscope. The bacteria in yogurt was viewed a long with a slice of potato‚ and a thin skin of red onion. The potato was dyed with iodine while the red onion was dyed with methane blue. The students had to assemble the first three slides. Two more slides were provided these are the yeast and protozoa cells. Those two are also viewed
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The Company Life-Cycle of presented by Yunus Acar & Jonas Gebremariam Company Overview Organizational Life-Cycle AGENDA Case Study – Apple Inc. Apple Today Conclusion 7/4/15 Int. Law‚ Yunus Acar‚ Jonas Gebremariam‚ SS 2015 2 COMPANY OVERVIEW Apple Inc. COMPANY 7/4/15 LIFE-CYCLE CASE STUDY Int. Law‚ Yunus Acar‚ Jonas Gebremariam‚ SS 2015 APPLE TODAY CONCLUSION 3 Founded in California 1976 Founders: Steve Jobs / Steve Wozniak / Ronald Wayne Industry: Computer Hardware Computer Software
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| marketing management | | Product Life Cycle | | With Respect To Lifebuoy Soap | |&
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specific life span called the product life cycle. Many factors‚ such as competition and technology‚ affect brands and their product life cycle. Nevertheless‚ brands or products typically go through five stages of growth: development‚ introduction‚ growth‚ maturity and decline. Characteristics for each stage differ and in response to the different needs of the product as it moves through its life cycle‚ the market mix used during these stages differ as well. Understanding the product life cycle can help
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The Life Cycles of Stars In the universe‚ there are hundreds of billions of stars. They are formed when gas and dust from space "clump" together. As the mass grows larger‚ gravity takes over and a core begins to form. The core becomes extremely dense and this compaction causes temperatures within it to rise to the point where nuclear fusion (the burning of hydrogen in a chain reaction) can begin. The heat generated by fusion can reach 24 million degrees F (Fahrenheit). "That amount of heat keeps
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Osmosis in Red Onion Cells By: Youssef Gharib Brief Description of Osmosis in Red Onion cells: Osmosis is the diffusion of water from an area of low concentration to an area of high concentration across a semi-permeable membrane. The purpose of this lab is to compare the three different types of solutions affect on the relative size of the vacuole to the cell‚ the outer membrane of onion red cells (tunics) are used to figure out the different types. In the red onion you can see effects promptly
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Eventually though a passing star or shock wave from a supernova will disturb the gas and dust. The dust and gas may then start to clump together‚ gravity will then clump more and more gas together‚ this is when the star starts the next part of its life cycle. Protostar: A protostar is when the gas has clumped together and it getting hot but has not reached what is known as critical mass. At this point the gas will be hot enough to glow. but since there is still a large amount of dust su
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becoming a red giant (when a star becomes a red giant with no more hydrogen left to burn it is out of the main sequence.) The red giant keeps expanding until all of its helium runs out and then all of the outer layers drift away from the core as a gaseous shell. The gas that surrounds the core is called a "Planetary Nebula". The core that is left then becomes a "white dwarf". After the white dwarf cools down enough it stops shining and dies‚ forming a "black dwarf". Another life cycle of a star
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