The planet neptune is approximately 4.5*10^9 kilometers from the sun. the planet venus is approximately 1.1*10^8 kilometers from the sun. which is the best estimate of how many times as far from the sun neptune is as venus?

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?