Consider the torsional oscillator in Figure P11.30. The rotating mass consists of two sm...

Consider the torsional oscillator in Figure P11.30. The rotating mass consists of two small spheres, each of mass m = 2.0 kg, that are attached to the ends of a massless rod of length L = 1.5 m. The frequency of this torsional oscillator is found to be 0.035 Hz. What is the value of the torsion constant k of the torsion fiber?