Mathematics, 16.03.2020 04:13 dazesreplayy2451

A lightning discharge from a cloud 2.5 mi high is measured at a speed of 550 mi/s (miles per second) for the down stroke and 10000 mi/s for the powerful return stroke (ground to cloud). What is the total time for both strokes? Give your answer to two significant figures.

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A lightning discharge from a cloud 2.5 mi high is measured at a speed of 550 mi/s (miles per second)...

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