1. You are asked to build some models of methane molecules for a science fair. You will arrange your
model atoms as shown on
the right, but you will
use ping-pong balls and tennis balls to model
hydrogen atoms and carbon atoms. If
you
have 12
ping-pong balls, how many tennis balls will you
need? Use the model you just developed to justify
your answer.

Science

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?