The potential energy of an object attached to a spring is 2.50 J at a location where the kinetic energy is 1.40 J. If the amplitude ? of the simple harmonic motion is 22.0 cm, calculate the spring constant ? and the magnitude of the largest force ?spring, max that the object experiences.

A simple pendulum has a period of 2.7 s and an amplitude of 5.0 cm. The mass of the bob is 5 g. Calculate the maximum kinetic energy of the pendulum and give your answer micro Joules (μJ).

particle with mass 2.57 kg2.57 kg oscillates horizontally at the end of a horizontal spring. A student measures an amplitude of 0.855 m0.855 m and a duration of 129 s129 s for 7272 cycles of oscillation. Find the frequency, ?,f, the speed at the equilibrium position, ?max,vmax, the spring constant, ?,k, the potential energy at an endpoint, ?max,Umax, the potential energy when the particle is located 60.5%60.5% of the amplitude away from the equiliibrium position, ?,U, and the kinetic energy, ?,K, and the speed, ?,v, at the same position.

A protein dimer can be viewed as a dumbbell linked by a spring. Stretching of the spring with an AFM cantilever adds the total (internal) energy of 10−17 J to the dimer. What is the average kinetic energy of dumbbell oscillations after the external force has been released? Help me