K3. A mass m is attached to a spring with a spring constant k and undergoes simple harmonic motion. A mass mi is now attached to m, and the period of oscillation is recorded as T1. The mass mi is removed and a new mass my is attached to m, and the period of oscillation is recorded as T2. What are masses m, m, and my if k = 100N/m, T1 = 2.13s, T2 = 1. 55s and B = m2/m1 = 0. 40? [5 points]