The mechanical energy of a mass-spring system is 0.118 J. If the force constant of the spring of 216 N/m and the mass is 0.8 kg, what is the amplitude of the oscillatory motion in cm? Enter a number with one digit behind the decimal point.Which of the statements below is wrong? O The net force acting on the pendulum bob is F = -mgsine. The period increases with amplitude because this force increases faster than harmonic restoring force F= -mg0. O A damped pendulum does not have a constant period. In a zero g environment a pendulum does not execute oscillatory motion. O For the same amplitude and the same pendulum length, the period is independent of the mass. The period of a simple pendulum noticeably depends on the amplitude for large amplitudes