1. The problem statement, all variables and given/known data A spiral spring is twisted from its equilibrium position through θ = 7° by an average torque of 60 Nm. What is its potential energy in Joules? http://schubert.tmcc.edu/res/msu/mmp/kap8/picts/spring2.gif 2. Relevant equations 3. The attempt at a solution I am not even sure how this is possible without the spring constant.. Any help would be greatly appreciated.