A wave has a frequency of 50Hz and a speed of 25m/s. What is the wavelength??

When a scientific theory has been tested and proved by the scientific community, it becomes a law

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".