a spring with spring constant 35 n/m is attached to the ceiling, and a 5.0-cm-diameter, 1.0 kg metal cylinder is attached to its lower end. the cylinder is held so that the spring is neither stretched nor compressed, then a tank of water is placed underneath with the surface of the water just touching the bottom of the cylinder. when released, the cylinder will oscillate a few times but damped by the water, quickly reach an equilibrium position. when in equilibrium, what length of the cylinder is submerged? the density of water is given by 1000 kg/m3.