A simple harmonic oscillator consists of a block of mass 3.30 kg attached to a spring of spring constant 210 N/m. When t = 0.640 s, the position and velocity of the block are x = 0.167 m and v = 2.940 m/s. (a) What is the amplitude of the oscillations? What were the (b) position and (c) velocity of the block at t = O s? (a) Number Units (b) Number i Units (c) Number i Units