Two pendulums are attached to a massless spring, as shown above. The arms of the pendulums are of identical lengths 1, but the pendulum balls have unequal masses m and m. The initial distance between the masses is the equilibrium length of the spring, which has spring contant K. What is the highest normal mode frequency of this system? A. g/1 K mi + m K K + mi m2 9 K K + + m1 m2 2g VT + m K m + m K l m