Recent content by a9211l

A second question then, if I do a constant pressure heating of some non-adiabatic system, that still changes the entropy in the surroundings, correct?

yes, that is very helpful. it made sense to me theoretically (idk if that's the right term...), but just needed that physical explanation.

So, I am looking a question about adiabatic expansions and the associated entropy changed. Why exactly is the change in entropy for a reversible adiabatic expansion/compression equal to zero? The book says its because there is no heat transfer, but for irreversible adiabatic processes, there...

Yeah, I'm neither a minority (or at least the ones they're looking for) or a woman. Fack... But I definitely have other options, right now, I'm working in a lab that I've been in since last summer. My project should be wrapped up by the end of the semester. Next fall, I'm starting at a new lab...

Idk if this is the right place to post this but, I'll ask anyway. So, I actually applied to two REU's for this summer, one at UNC and one at MIT, and the decisions should be coming back sometime soon. So, basically, I was told the MIT REU only accepts around 10 students for the summer...

solve as an improper integral? maybe, I haven't taken calc II in about 3 years.

I'm still a student, but I've talked to many doctors lately. Their advice to me? Don't be a doctor unless you can't possibly see yourself doing anything else. ie. if being a doctor is your backup choice, don't even bother with it. You won't survive in the field.

What makes you think you will most likely publish a paper at an REU? They are not structured so that you can put out a paper in 10 weeks, I actually don't know how likely it is that you put out a paper in an REU, its just not long enough. Think of it this way, when I first started research, I...

Applying the Biot-Savart eq'n for inside a current loop is pretty simple to find the magnetic field inside a current loop. But how would one find the magnetic field outside of one?

do you not have +/-'s?

I complete agree with this. Arunma is right in the sense that very little calculus is used in solving about 75% of problems you will face in your introductory calc-based physics class, but that isn't really the issue. The point in taking a calc based class is that you're understanding what is...

I always thought Tenenbaum and Pollard was the standard in intro ODE's. Its very good, I use it for reference and provides examples for just about every case you can think of for any differential equation covered in a first course in ODE's. not to mention, it has answers to all the problems.

Acid/Base equilibrium is basic analytical chemistry and very important in the lab, you might want to master it. Its very intuitive and requires very basic algebra.

yes that rule is used, but when you take du, you're entire quantity needs to be multiplied by dt.

For a problem like this its always helpful to draw a free body diagram. You have a weight force acting on m3 equal to (m3)g, and a tension in the rope -T. m3(g)-T=(m3)a(net) On m2, you have a force of friction -uFn and the same tension force T, such that -uFn+T=(m2)a(net) If you add the two...