An oscillator consists of a block attached to a spring (k = 490
N/m). At some time t, the position (measured from the system's
equilibrium location), velocity, and acceleration of the block are
x = 0.107 m, v = -16.6 m/s, and a = -103 m/s2. Calculate (a) the
frequency of oscillation, (b) the mass of the block, and (c) the
amplitude of the motion.