1. The problem statement, all variables and given/known data A mass M is suspended from a spring and oscillates with a period of 0.880 s. Each complete oscillation results in an amplitude reduction of a factor of 0.96 due to a small velocity dependent frictional effect. Calculate the time it takes for the total energy of the oscillator to decrease to 0.50 of its initial value. 2. Relevant equations N oscillations=(initial amplitude)x(factor)^N E=Eo*e^(-t/Tau) Tau = m/b 3. The attempt at a solution I really have no idea on how to approach this problem. I need to find tau, which is m/b, but idk what b is. if i have tau, the E on both sides cancel and i'm left with 1/2 = e^-t/tau. t = tau ln (2) So basicly i need to find tau. Thanks!