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[Ochita]

Now this thread has been spawned by the Happy thread when someone asked a Physics question. So ask questions such as 'How does the body breath?' Spoiling long answers and questions will make it a lot easier to navigate.

Q: How does the body breath?

[Darvi]

By pumping air in and out of the lungs.

[Ochita]

How do the lungs pump air?

[Darvi]

The diaphragm and the ribs have something to do with it I believe. *google*

You know, by contracting themselves.

[ToonyMan]

What happens if a contractor doesn't do his remuneration?

[Strife26]

The answer's a number, but it's more than that. It has length. It has the original spark for half of my name. It's where cloaks and 16 tomes of magic spells came into my closet. Elegantly bound books. It's where I got more than Fire, Earth, Water, and Air. It's a game, it's a song, it's a movie . . .

What is it?


((Serious props if anyone can get this sucker. ))

[Jiharo]

Spoiler: Obvious wrong answer (click to show/hide)

number

half of my name

13 apostols=Judas(or Loki)=betrayal=strife or 26/2=13

It's where cloaks and 16 tomes of magic spells came into my closet.

Looks like fantasy RPG reference to level.

It's a game, it's a song, it's a movie

Doesn't fit any of the rest, though. 

[Vector]

Your answer is 7.

[Tack]

What happens if a contractor doesn't do his remuneration?

If a contractor doesn't pay his price, he is eaten by the gate, and basically dies of septic shock.

But can't we discuss a puzzle like:


There is a stone in a block of ice, floating in a glass of water. It is assumed that the stone has a density overpowering the buoyancy of the ice, during some point of it's melting.
How would the water level change during the process of it's melting?

[ToonyMan]

What happens if a contractor doesn't do his remuneration?

If a contractor doesn't pay his price, he is eaten by the gate, and basically dies of septic shock.

I thought they melted.

[Strife26]

There is a stone in a block of ice, floating in a glass of water. It is assumed that the stone has a density overpowering the buoyancy of the ice, during some point of it's melting.
How would the water level change during the process of it's melting?

It'll actually lower slightly, assuming that the size of the container and the rock doesn't change much due to thermal expansion.A block of ice takes up more space than the same amount of water in liquid form.


Now, for my riddle.
Neither answer is correct, but one of them is partially right. Although the other answer is closer at the same time . . .

[Leafsnail]

Well... another physics one I worked on today.  This one's a bit easier, but there's less room for argument in the answer.

Please remember: There's nothing weird about the setup, it's basically exactly as presented.

A small mass, M, is given an initial velocity v₀, and it slides from A to B via two possible paths; either down the shallow dip X or over the hump Y, both of which are the same shape but inverted.  Friction is to be ignored.  Along which path does the mass take the shortest time to slide from A to B?

Spoiler (click to show/hide)

A. Via X
B. Via Y
C. You cannot say
D. Same time taken

[woose1]

Via X of course. How would I know that the ball would have the initial velocity to overcome the hump in the first place?

EDIT: Assuming that there's gravity, in any opposite case it would still be X.

[Ochita]

D

[Vector]

D