1. A 0.33-kg mass is hanging from a spring with spring constant 12 N/m. Then the mass is displaced from the equilibrium by 2.7 cm and let go. What is the resulting frequency of the oscillation?
2. A 0.8-kg mass is hanging from a spring with spring constant 19 N/m. Then the mass is displaced from the equilibrium by 2.3 cm and let go. What is the resulting period of the oscillation?