Answer: 1. recollapsing universe
4. critical universe
3. coasting universe
2. accelerating universe
Explanation:
The universe is continually growing and galaxies are moving apart relative to one another.
These four models foresee the expansion and possible contraction of the universe.
Recollapsing universe: this model predicts that galaxies will stop growing apart and start getting closer to one another. It predicts that there is enough density to stop the growth of the universe in the future.
Critical universe: the universe has the same density as the critical density. This is the difference between the density the universe requires to stop and that of a universe with too little density to ever stop expanding
.
Coasting universe: has enough density to enable galaxies to keep growing apart
, in essence, less than the critical density.
Accelerating universe: this model explains that the distance of far-off galaxies is growing exponentially from an observer over time.
Answer:
Heat output changes very quickly at low flow rates but very gradually at higher flow rates. This trend also holds true at other supply water temperatures. Now take a look at the temperature drop across the fin-tube over the same range of flow rates. First, it’s obvious the temperature drop doesn’t remain constant as flow rate changes.
Explanation:
Greece was really rocky and supported growth of only a few crops,so they did trading to obtain food.
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The winds that pushing the sasiling ship from north, but they are also curving to west. theses winds are known as : d. polar easterlies.
polar easterlies is the wind are blowfrom east to west.
hope this help
