A star's death method is determined by its mass. A star with a mass under 4.2 times the mass of the Sun (called the Chandrasekhar limit after the University of Michigan astronomer who first determined it) will wind up a white dwarf and ultimately burn out as a heavy but small, dense object.
<span>More massive stars will become white dwarfs, neutron stars, novas, supernovas, black holes, depending on a variety of factors, including mass and the presence of a close stellar binary companion</span>
Answer:
Supply for the mother country by putting limits on goods the colonists could buy or sell, whose ships they could use, and who they could trade with.
Explanation:
The major way that the geographic location of the united states affected its foreign policy before world war 2 was that it was protected by ocean, meaning it never felt the need to defend itself to a great extent.
The internal and external factors that contributed to the collapse of the
Roman and Chinese empires were as follows:
Internal factors -
- excessively expensive and overextended compared to the existing resources.
- neither had technology advances that increased available resources.
- Both were victims of tax avoidance by landowner families who absolved the poor from paying taxes.
- Instability was brought on by antagonism between elite factions in both cases.
- Both were affected by epidemics.
External factor -
- Both empires' frontier territories were inhabited by nomadic nomads who grew to be increasingly dangerous and eventually captured parts of both empires.
<h3>Why did the Roman and Chinese empires collapse?</h3>
The fall of the Roman Empire had a number of causes. Each was woven into the other. Many people even attribute the rise of Christianity to the fall. Many Roman inhabitants became pacifists as a result of Christianity, making it harder to repel the barbarian invaders. Additionally, the Roman empire could have been maintained with the money invested to construct churches.
Han China's downfall was primarily brought on by the government's inability to run the country effectively. The bureaucrats became corrupt and prioritized pleasure over their jobs. The empire saw epidemics and nomadic insurgencies, yet government spending increased because political officials led extravagant lifestyles.
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