Malmberg and Wharton verified a form of this process derived from the Laplace transform on the linearized Vlasov–Poisson equation, which occurs as the inverse of the two-stream instability. This process is introduced into semi-active vehicle suspensions by acting on an MR fluid. This phenomenon occurs when the first-order term in the equation [read slowly] “x-double-dot plus a (-5[1])x-dot plus b x equals zero” does not vanish. (10[1])A form of this process that affects longitudinal plasma waves is named for Landau. (10[1]-5[1])Three types of this (10[1])process are (-5[1])classified by a parameter’s value relative to 2m times the natural frequency. When the Q-factor is one-half, this phenomenon (10[1])occurs critically. (-5[1])For (0[1])10 points, name this phenomenon where energy loss causes the decrease of the amplitude of a harmonic oscillator. ■END■ (10[2]0[2])