Acontainer can hold a mass of 40 grams. if jackson has a fake gold chain that has a density of 10 g/cm3 that occupies a space of 5 cm3, will the box be able to hold it? (d=m/v, v=m/d, m=dxv)

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?