Hüdro- ja aeromehaanika
2
[
ln ( a - x ) - ( y - b) 2
2
]
9. If you put ice on one end of a metal rod, why does the other end get cold too?
Because of the heat exchange process, the metal rod is warmer than ice and therefore the
heat transferred to the ice, because of what an iron rod begins to cool.
10. If you mix two colours of paint together, why can't you unmix them?
We can't unmix the paint as they have equal footing. When mixing the two colours is a
diffusion - the process of mixing (interpenetration) of the two substances, leading to self-
alignment of their concentrations across the occupied volume. Since the diffusion process can
proceed only in one direction is therefore impossible to obtain again two original paint.
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11. How much does the humane body radiate
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