attempt 3 © macmillan learning a physics lab is demonstrating the principles of simple harmonic motion (shm) by using a spring affixed to a horizontal support. the student is asked to find the spring constant, ????k . after suspending a mass of 255.0255.0 g from the spring, the student notices the spring is displaced 35.535.5 cm from its previous equilibrium. with this information, calculate the spring constant. spring constant: n/mn/m when the spring, with the attached 255.0255.0 g mass, is displaced from its new equilibrium position, it undergoes shm. calculate the period of oscillation, Tt , neglecting the mass of the spring itself.