Amass of gas occupies a volumeof 400cm^3 ataatemperature of 27°C and a pressure of 1 atmosphere. wgat will be the volume of the gas at a temperature of 327K and a pressure of 2 atmosphere

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?