Bending metal is a lot easier than bending a rock, same goes for wood.
Ever tried bending a glass?
Well, that's another thing. Flexible sometime doesnt go along with hard, but it take a lot of time to bend a mental, and it also depend on how you bend it. By long time, I mean longer than the time of the oscillation happens.
When I talked about sound last time, I was talking about the force cause by the sound wave, not the wave itself. This force is not a constant, but rather, a function of sin(f(t)). When the force is maxed, say, the door is bend inside, and when the force is min, due to its flexibility, the door throw itself outside(layman term). This is oscillation, and if the f of external force = f of internal oscillation, resonance happens.
and hey, I've seen people bend glass
The point is, if anything, that the sound would be reflected because of metal's amazing reflection ability, and would simply pass through wood.
The siren would be damaging herself and anything around her.
Edit: Let's see how far this **** can go.
First, sound is not suppose to pass thru anything. It make that thing vibrates, and thing vibrates cause sound wave. That's why the sound is distorted when we listen it thru a wall.
Second, metal has no
amazing reflection ability. it's not a mirror (maybe close, but not), and second, it's not reflex (or you wont hurt yourself hitting something made of metal)
True, I believe siren should hurt herself and others before breaking the door, but maybe they got friendly fire turn off??? Who know?
I'm no expert on biologic, so I cant say for fp case, but hey, I notice those little *****, You dont want to be my student, I dont want to be your teacher, too. If you see this's too much, just say, I'll stop.
I'm a bit lazy now...