Recent content by masscal

Does that mean that the energy from the sound keeps building up as it enters the pipe?

But what if it wasn't wasn't an integral multiple of the wavelength. There would still be Nodes and anti-nodes in the pipe, right?

Why, because the air is free to move at the open end, and fixed at the closed end. ) . But why does it matter which Frequency you feed into the Pipe. Shouldn't any Sound Frequency go through pipe Reflect off the other side, and then the Incident Wave and Reflected wave should...

What's so special about resonant Frequencies ( or length of the pipe) in an pipe: As I understand it, if any two waves pass by each other in different directions, they will create a sort of standing wave with anti-nodes and nodes ( hence beats). They always show...

Interesting, In that link it states that the contact area for wider tires increases (assuming all else is equal). I've heard that stated before, but I have also heard the opposite (the contact area doesn't increase for wider tires). The very first reply to this thread states the opposite.

thanks

So how do you edit the title of a thread...

I was reading my textbook, and I came across the old formula F friction = mu N . It also explicitly stated that force of friction is independent of area. Of course I immediately wondered if this were true then why do wider tires have move grip, So googled searched for the answer. I tried a...

So isn't that two explanations then?/ if it is a state change why would it need latent heat, surely each individual molecule has enough energy to escape.

Would this mean that the faster molecules are most likely to collide with the atmosphere?

I'm sorry I am not exactly sure what you are saying. Are you saying it is this phenomenon that is causing the compressed gas to cool when the valve is opened?, and if it that phenomenon, then why is it that you can freeze things with the compressed gas that escapes.

So does this mean the gas that escapes should be hot?

So the explanation is that the gas molecules with greater velocities are a little more likely to fly out of the valve? Are there simulations of this that have been done before?

I still don't see why the would slow down. I guess I am looking for a detailed description of why the individual gas molecules left behind would be moving slower. I would like to scale it up to balls bouncing in a room. say, If three balls were bouncing around a room and one flew out, I don't...

Ok, it lost some energy when the moving gas molecule flew out. What if you compressed three gas molecules in a really really tiny space, open a tiny vale to let one molecule fly out. Would the other two some how slow down?