A 1.12 kg block is attached to a horizontal spring with spring constant 3500 N/m. The block is at rest on a frictionless surface. A 10 g bullet is fired into the block, in the face opposite the spring, and sticks. What was the bullet's speed if the subsequent oscillations have an amplitude of 12.8 cm? Could you determine the bullet's speed by measuring the oscillation frequency (yes or no)?