Compression or sound waves behave a lot like transverse or electromagnetic waves. compression waves exhibit all but one of the following behaviors. that is a) reflection. b) refraction. c) transfer energy. d) travel through a vacuum.

(D. travel through a vacuum.) All waves need a medium to wave. In a vacuum there is no medium to wave.

The correct choice would be

D) travel through a vacuum.

Electromagnetic waves are transverse in nature and do not require a medium to travel from one point to another. On the other hand, sound waves are longitudinal waves and require a medium to travel from one point to another. hence sound waves can not travel through vacuum but electromagnetic waves can.

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.