The property that describes an electromagnetic wave and not a mechanical wave is travels in a a vacuum. That will make the correct answer B. I hope that helps you.
Answer:
no I don't want too..
stay safe healthy and happy.
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Some examples of constant velocity (or at least almost- constant velocity) motion include (among many others): • A car traveling at constant speed without changing direction. A hockey puck sliding across ice. A space probe that is drifting through interstellar space.
