Try this: Consider a two-dimensional gas of molecules inside a rectangular box of small width d and very large length. If the box is filled by point-like molecules with density n, then the pressure is p=nkBT. (kB is the Boltzmann constant, and T is the temperature.) If the point-like molecules are replaced by thin linear molecules of length L, then the pressure will slightly increase. (a) Consider a case when L is smaller (but not much smaller) than d, and the molecules do not interact with each other, but they cannot penetrate the walls of the box. (See picture (a).) Calculate the exact pressure in the box. This one was on one of my tests, Is it possible that two different transitions in hydrogen atom give the same frequency of radiation? -Kastro
Here is a test for all of you that is REALISTIC. 3 Female traders come for an interview at your hedge fund which is looking for good annual returns: - One is very good at fundamentals and trading long-term with a few very profitable positions a year, - One is a very sound technical trader with good daytrading skills on futures for scalping, - One is a combination of both but only uses options. Which one do you hire? (Answer below) Answer: The one with the biggest tits.
What happened to the recruiter that posed this question? Spontaneous combustion? Beaten to death by the applicants?
A bunch of us saw a guy on the street flipping a coin and got heads 10 times in a row. We decide to bet among ourselves. Would you bet on head or tail on the next flip of coin?