What Determines the amount of TE of an object

Ascientific blank must be testable and capable of being proven false?

The energy equivalent of the rest mass of an electron is

Gabby calls her cousin who lives in a different state and tells her to turn her radio to channel 98.7 so they can listen to their favorite song that is playing. her cousin turns her radio to 98.7, but does not hear the same song gabby hears. which most likely explains why?