Recent content by tjlaxs

Homework Statement For temperatures T >> T_C (critical temperature) derive the heat capacity at constant pressure C_P from van der Waals equation. Homework Equations Critical temperature: T_C = \frac{2N(V - Nb)^2}{kV^2} T_C is derived from the fact that it exist at the point in which...

My guess is you are forgetting that the directions of the two velocities are different (first 15m/s to north and second caused by the force is to east).

Considering this is propably one of the easiest exercise you can make of Newton's second law and constant acceleration, you should really try solving it again. Keywords: Newton's second law and motion with constant acceleration ;)