Which of the following is true regarding the current in a series circuit? The current will differ throughout the circuit depending on the point. The current will always be the same throughout The current will sometimes be the same throughout the circuit In order to get the total current you must add the resistors

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?