Answer:
a)
, b) 
Explanation:
a) The system ice cube-spring is modelled by means of the Principle of Energy Conservation. Let assume that height at the bottom is zero:





b) The distance travelled by the ice cube is:


Answer:
measured in GHz?
Explanation:
im not sure what the context is it depends on what your lesson is on
A. The particles are packed more tightly in materials with more density which causes the vibrations to bounce of the partials more rapidly which makes them go faster
W, because as time is moving up at a consistent rate the speed is as well, creating the straight line.