# All Questions

108 views

### Why does a green glass block more UVA/B rays than a blue one?

Why does a green glass block more UVA/B rays than a blue one? White glass blocks 36%, blu 43% and green glass blocks most UVA rays. That is why beer and olive oil bottles are green, they say. Edit: ...
51 views

### Photons “rate of fire”

I'm not sure if this makes any sense but, do photons "discharge" from a source at an infinite rate?
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### Force Diagram for K&K 2.13 [closed]

I have been (independently) working on Problem 2.13 in Kleppner and Kolenkow's An Introduction to Mechanics and come to an answer which conflicts with the hint the authors provided in the book. The ...
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### Electric Potential of Conductors

I understand that charges in a conductor reside on the surface of a conductor. So why is it that the neutral inside of a conductor and the charged surface are at the same potential?