A 0.4-kg mass is attached to a spring that can compress as well as stretch. The mass and spring are resting on a horizontal tabletop. The spring constant is 50 N/m. The mass is pulled, stretching the spring 48 cm. The mass is then released, and the spring-mass system begins to oscillate. a)Construct a complete Energy-Interactiondiagram to predict the speed of the massas it passes a point that is a distance of 39cm from its equilibrium point with the spring compressed