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Posts: 3561
12 years ago
A radio station broadcasts at 80 MHz. How long does it take for this radio signal to travel a distance of 20 × 106 m?
A) 0.15 × 10-2 s
B) 15 ms
C) 6.7 × 10-2 s
D) 20 ms
E) 25 ms
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12 years ago
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