Recent content by davidyanni10

Materials science engineering. Look into it :)

Also, keep in mind that while primarily phonons (upper bound speed of sound) conduct heat through insulators, and primarily free electrons conduct heat through conductors (not sure of the theoretical upper bound on velocity there), you still have radiative heat that travels at the speed of...

No worries, good luck with your problem. Just because the phase diagram can't give you the info you need doesn't mean it can't be got.

Thanks for the answers and the links guys! This clears things up a lot.

I think you're asking for an equation sheet like this: Of course, the equations will be difficult to use or understand without some explanation, which is provided in pretty much all physics textbooks. If you want a list of equations and to learn how to use them and understand what...

Yeah, I'm picturing something like a wire with a resistor connecting the two materials. As electrons flow from one to another the current goes through the resistor and V=IR so you could get the voltage from resistive heating or something. Again though, like you said, that's based on current...

F=ma, your force and acceleration should be in the same direction, as you indicated. If the net forces on a body don't equal zero, the body will accelerate as is the case for centripetal acceleration. The problem statement is kind of silly, because centripetal acceleration doesn't "cancel"...

I know you can deduce the work function using X-ray Photoelectron Spectroscopy, but that has nothing to do with voltmeters. bump.

How does reflection work in non-metals and metals? If you take, for example, a polished brass surface (or whatever really) and an incident photon, is the photon being absorbed and re-emitted by an atom at the surface of the reflective brass? If so, how is it that the re-emitted photon is...

A friend of mine is working with shape memory alloys and he's got one that is behaving strangely. At "low" temperatures a "fresh" solution heat treated sample will form martensite upon cooling, and austenite upon heating as expected. Heat and cool all you want and you get the transformation...

Thanks for the responses and links, sorry about the double posting (wasn't sure which forum my question fit into.) @soothsayer, What is classical about the uncertainty principle though? Aren't HUP and Schrodinger's equation saying essentially the same thing about the energy of an electron at...

Yeah of course. Just covering my a## in case someone comes along and starts pointing out all the instances that deviate from the norm. Let us know when the game is developed!

Just wait until we get FCC magnesium ;)

If I'm reading this correctly then it's generally correct, of course there are exceptions and more interplay between some of these properties. For example more ductile materials usually have a lower stiffness as well (though not always.)

What Chestermiller said. I just want to point out that with the equation you posted the force is attractive when it is positive and repulsive when negative (not the other way around) (When the slope of the potential curve is negative the force is positive)