Part A A suspension bridge oscillates with an effective force constant of 1.05x108 N/m. How much energy is needed to make it oscillate with an amplitude of 0.084 m? Submit Answer Part B If soldiers march across the bridge with a cadence equal to the bridge's natural frequency and impart 1.01x104 J of energy each second, how long does it take for the bridge's oscillations to go from 0.084 m to 0.311 m amplitude? Submit Answer

Part A A suspension bridge oscillates with an effective force constant of 1.05x108 N/m. How much energy is needed to make it oscillate with an amplitude of 0.084 m? Submit Answer Part B If soldiers march across the bridge with a cadence equal to the bridge's natural frequency and impart 1.01x104 J of energy each second, how long does it take for the bridge's oscillations to go from 0.084 m to 0.311 m amplitude? Submit Answer