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Archy [21]
3 years ago
11

Why doesn’t the sun blow itself up?

Geography
1 answer:
statuscvo [17]3 years ago
5 0

An explosion occurs when the timescale for the energy release by some process is much shorter than the timescale on which a system can adjust to damp the energy release process. In the present day Sun, nuclear fusion is a very slow process: on average it takes many billion years for a proton to fuse with another. This timescale is quite temperature dependent, so you might have thought the centre of the Sun might heat up quickly, leading to a runaway "explosion". However, an increase in temperature leads to an increase in pressure that would expand the Sun, reducing the core density and temperature and decreasing the rate of nuclear fusion again. The timescale for the Sun to react in this way is just millions of years, so this acts like a thermostat that keeps the reactions under control.

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3 years ago
In 1910, for expansion and increased power, what country did japan take over
d1i1m1o1n [39]
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2 years ago
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yan [13]
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3 years ago
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pishuonlain [190]

One option that is not true about Polar projections is that C.  It only shows one hemisphere.

<h3>What do polar projections do?</h3>

Polar projections are a type of azimuthal projection that aim to showcase the furthest areas north and south of the Earth. This means that they show both the Arctic and Antarctica in the model.

The Artic is in the Northern hemisphere and Antarctica is in the Southern hemisphere. This means that both hemispheres are shown and it is wrong to say that polar projections show only one hemisphere.

Find out more on polar projections at brainly.com/question/298112

#SPJ1

3 0
1 year ago
(Brainliest!!)<br><br> 2+2<br> i was dared to do this so just answer LOL
WINSTONCH [101]
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2x2 is 4 and that is the same thing as 2+2.
5 0
3 years ago
Read 2 more answers
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