Why do you see a red sunset sometimes?

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A red sunset occurs when clouds or high levels of water vapor scatter shorter wavelengths of light, allowing primarily red light to reach the observer's eyes. This phenomenon is enhanced by atmospheric conditions that filter out other colors. The discussion also briefly touches on the formation of rainbows, which is linked to light refraction and dispersion through water droplets. The original poster is seeking clarification on these physics concepts. Understanding these principles can enhance comprehension of atmospheric optics.
Matty
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Hai people, our physics teacher has given us two theory problems to sloves which I am having trouble doing, so any help on this would be great

the two problems are,

Why do you see a red sunset sometimes?

and

how do rainbows form?

any help would be great as I said
 
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Are you related to BryceG?

Why do you see a red sunset sometimes?

If there are clouds or even a lot of water vapor, only red light, having the shortest wave length, will get through to your eye without being scattered.

how do rainbows form?
See my answer to BryceG's "questions".
 
thanks man

and no I am not related to BryceG
 
That was a facetious question. In case you didn't notice, BryceG gave a series of questions very similar to yours.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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