The density of the material is 8,509/cm3. What will mass of 25cm3 material? ...... 212,5g ...... 294g ...... 330.59 What do the following units measure? newton - ................... joule - ........................ How much should you increase the mass in spring oscillator to double its period? ....... increase 2-times ....... increase 4-times ....... decrease 2-times What quantities are conserved in elastic collisions? ....... mass and work ....... momentum and kinetic energy ....... momentum only