Recent content by Vathral

Homework Statement I'm reading through my textbook and doing examples on polytropic process. I see this step and cannot figure out how the textbook gets V3 = 0.0169 m3 P2V2n = P3V3n (500 kPa)(0.05364 m3)1.2 = (2000 kPa)V31.2 V3 = 0.01690 m3 Homework Equations Not sure what to add...

x \frac{dy}{dx} - y = \frac{x^3}{y} e^y_x So v = \frac{y}{x} y = vx \frac{1}{y} = \frac{x}{y} \frac{dy}{dx} = v+x \frac{dv}{dx} x [v + x\frac{dv}{dx}] - vx = \frac{x^2}{v} e^v xv + x^2 \frac{dv}{dx} - vx = \frac{x^2}{v} e^v x^2 \frac{dv}{dx} = \frac{x^2}{v} e^v...

Also depends on the school. I know some colleges here in New York City does not allow you to drop more than 16 worth of credits or you lose financial aid and possibly be marked for suspension from the school.

Not sure if I should have put this here or in the homework section but I am simply asking for direction on these problems. I have 5 problems to work on and my biggest problem is identifying what method to use to find the answer. I don't need help answering because it's something I'd like to...