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OpenStudy (anonymous):
Which of these would travel the fastest from Earth to Mars? a. a strong magnetic field b. a ray of ultraviolet light c. a high speed electrical charge d. a longitudinal wave carrying sound
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OpenStudy (anonymous):
ll electromagnetic wave travel with same speed in same medium. In vacuum it is 3*10^8m/s. greatest speed ever known. so im pretty sure the answer is B
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