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.
E & 4. A & 2. C & 5. B & 3. D & 1. Im not positive that these r the answers but, heres what <em>I think.</em>
Goods are usually carried on large barges that go through the Volga river, Russia's most valueable geographical asset due to its large extent from East to West.
Answer:
Hawaii and Kiribati
Explanation:
The biggest time difference in the world is the line islands of Kiribati and the state of Hawaii, in which traveling from Hawaii to the line islands means you would have to change your clock forward 22 hours(almost a full day forward).
