Question: During a thunderstorm, you can easily estimate your distance from a lightning strike. Count the number of seconds that elapse from when you see the

During a thunderstorm, you can easily estimate your distance from a lightning strike. Count the number of seconds that elapse from when you see the flash of lightning to when you hear the thunder. The rule of thumb is that 5 s elapse for each mile of distance. Verify that this rule of thumb is (approximately) correct. (One mile is 1.6 km and light travels at a speed of 3 × 108 m/s.)

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