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PolarNik [594]
3 years ago
9

In your own words, explain why we see a rainbow or colorful sunset. Explain the properties and interactions that make this displ

ay possible.
Physics
1 answer:
Maksim231197 [3]3 years ago
7 0
Wee see rainbows due to the geometries of the raindrops. when the sun shines behind, rays of light enter the raindrops and this light are refracted. The lights are then reflected from the back of the raindrop and refracted again as it passes the rain drop. Refraction in this sense is the cause for splitting the light into several colors.
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Two equal point charges QQQ are separated by a distance ddd. One of the charges is released and moves away from the other due on
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The kinetic energy K of the moving charge is K = 2kQ²/3d = 2Q²/(4πε)3d = Q²/6πεd

Explanation:

The potential energy due to two charges q₁ and q₂ at a distance d from each other is given by U = kq₁q₂/r.

Now, for the two charges q₁ = q₂ = Q separated by a distance d, the initial potential energy is U₁ = kQ²/d. The initial kinetic energy of the system K₁ = 0 since there is no motion of the charges initially. When the moving charge is at a distance of r = 3d, the potential energy of the system is U₂ = kQ²/3d and the kinetic energy is K₂.

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So, kQ²/d + 0 = kQ²/3d + K

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