A load of 5000 N resulted in a static displacement of 0.05 m in a composite structure. A harmonic force of amplitude 1000 N is found to cause a resonant amplitude of 0.1 m. Find
(a) the hysteresis-damping constant of the structure
(b) the energy dissipated per cycle at resonance,
(c) the steady-state amplitude at one-quarter of the resonant frequency, and
(d) the steady-state amplitude at thrice the resonant frequency.