1. A spring with a force constant of 1200 N/m has a 55-g mass at its end. (a) If the vibrator energy is 6.0 J, what is the amplitude of vibration? (c) What is the maximum speed of the mass? (c) What is the speed when the mass is at a position x- A/2? [15] 2. A geologist finds that the frequency of a pendulum is 0 3204 Hz when at a location where the

1. A spring with a force constant of 1200 N/m has a 55-g mass at its end. (a) If the vibrator energy is 6.0 J, what is the amplitude of vibration? (c) What is the maximum speed of the mass? (c) What is the speed when the mass is at a position x- A/2? [15] 2. A geologist finds that the frequency of a pendulum is 0 3204 Hz when at a location where the