Think about the problem of aerodynamic heating. How does radiation and radiative heat transfer play a role in how hot a surface gets during re-entry?
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Ответ:
The last one is trying hard to be the right answer, but it's
worded so awkwardly that it can easily be misunderstood.
The way I like to answer Laura's question is like this:
-- Yes, the action is the horse pulling on the cart.
-- Yes, the reaction is the cart pulling on the horse.
-- Yes, the action and reaction have equal strength, and they're in opposite directions.
-- But they act on TWO DIFFERENT OBJECTS ... the horse and the cart.
Yes, two equal and opposite forces cancel each other and
add up to zero if they act on the SAME OBJECT.
Nobody ever said that they cancel each other and add up
to zero if they act on TWO DIFFERENT OBJECTS.
There's nothing here to be worried about.