You have given a balloon an electric charge by rubbing it on your head. You hold the balloon between two of your friends, Steve and Joey, at the location shown below.
Steve
Joey
5
Whose hair will stand up more from the charged balloon, Steve or Joey?
Steve
Joey
I don't know yet

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?