8. A box has a mass of 3 kg. The box is lifted from the floor and placed on 10 points a shelf. If the box gains a Potential Energy of 100 J, then how high is the
shelf? *
3.40 m
1.20 m
2.34 m
1.50 m

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?