The numerical value for density in that equation is incorrect.
actually, the second line is fucked too...
it's the dP term isn't it. If P0 is very small then the term becomes P/P and thus 1, leaving 1/p^2. But, I hear you say, where is the negative sign!!! It must be that P0 - P = P, thus P0 = 2P?
it's the dP term isn't it. If P0 is very small then the term becomes P/P and thus 1, leaving 1/p^2. But, I hear you say, where is the negative sign!!! It must be that P0 - P = P, thus P0 = 2P?