Answer:
The heat equation can be written as. ∂ u ∂ t = α ∇ 2 u. where u(x, y, t) is the temperature field that varies in space and time, and α is the thermal diffusivity constant.
Answer
Explanation:
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Answer:
Polar air masses derived from areas close to Iceland and tropical masses from the Azores bring, respectively, very different conditions of temperature
Explanation:
Answer:
Neolithic Revolution
Explanation:
Writing (Cuneiform script / 3200 B.C.)
Iron Weapon (aprox. 3000 B.C.)
Neolithic Revolution (Started around 10,000 B.C.)
The first cities (Mesopotamian cities / around 7500 BC)
Extraterrestrial bodies, specifically the stars