Which explanation could a student use to explain how electromagnetic and mechanical waves travel?
O A Neither electromagnetic nor mechanical waves travel in a vacuum and neither transfers energy.
O B. Both electromagnetic and mechanical waves travel in a vacuum and they both transfer energy.
O C. Mechanical waves can travel through a vacuum and a medium and they transfer energy.
OD. Electromagnetic waves can travel through a vacuum and a medium and they transfer energy.
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Which explanation could a student use to explain how electromagnetic and mechanical waves travel?
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