What kind of speed occurs when an object covers equal distance in an equal amount of time?

In which phase(s) do the molecules take the shape of the container?

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

Light waves travel than sound waves.