The best part of this is the area of a circle, which is the integral with respect to r of rtau, or taur^2/2.
Sure, pi*r^2 is nice and easy to remember, but also remember even the mnemonic is wrong... pies are round!
Sure, pi*r^2 is nice and easy to remember, but also remember even the mnemonic is wrong... pies are round!
Also, e ^ (-i * pi) + 1 = 0
What's the potential energy of a unit distance unit spring constant?
What's the energy of a unit mole, unit temperature in Boltzmann units?
:-)