The partial differential equation of the temperature in a long thin rod is given by = a at x2 0.6 T-60C T-30C 9 cm If a = 0.9 cm/s, the initial temperature of rod is 15C, and the rod is divided into three equal segments, find the temperature at x = Ax (using At = 0.2s) for t = 0.6s: a) Using the implicit method B)using the explicit