The formulae to find the mechanical energy are:P. E=mgh and K. E=½mv² a. what is the common factor that affects both forms of energy? b. how does height affects the potential energy of a body? c. Kinetic energy of person who is running will be more than a person who is walking. justify.

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?