What is the definition of an unbalanced force?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

Two cans on a sunny window one black and the other white construct and explanation of the effect of sun will have on both cans over a two hour period?

Which statements best describe energy? check all that apply. the total amount of energy in the universe remains constant. the total amount of energy in the universe changes constantly. energy cannot be converted from one form to another. energy can be converted from one form to another. energy cannot be created or destroyed. energy can be created or destroyed.