1. The problem statement, all variables and given/known data https://s2.lite.msu.edu/res/msu/perl_author/MI3/CH7/IMAGES/MI3_7P32.png The figure shows a potential energy curve for the interaction of two neutral atoms. The two-atom system is in a vibrational state (i.e., a total energy state) indicated by the heavy solid horizontal line. At r=r1, what are the approximate values of the kinetic energy K, the potential U, and the quantity K+U? 2. Relevant equations Vibrational State = K + U 3. The attempt at a solution I'm pretty sure that U = -1.2 (dotted line) And the Vibrational State (bold line) or K + U = -0.4 Which I'd assume means that K = 0.8 but this is incorrect. I've looked at this inside out and cannot figure out what's wrong.