by the stiffness of the load against which it shortens, just as the rate of relaxation of a viscoelastic element in series with a spring depends on both the time constant of the viscoelastic element and the spring constant.
by the stiffness of the load against which it shortens, just as the rate of relaxation of a viscoelastic element in series with a spring depends on both the time constant of the viscoelastic element and the spring constant.