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10 August, 17:35

The time between a lightning flash and the following thunderclap may be used to estimate, in kilometers, how far away a storm is. How far away is a storm if 6 seconds elapse between the lightning and the thunderclap?

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  1. 10 August, 18:42
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    Given Information:

    Elapsed time = t = 6 seconds

    Required Information:

    Distance = d = ?

    Answer:

    Distance = d = 2.058 km

    Explanation:

    We know that the speed of sound in the air is given by

    v = 343 m/s

    The relation between distance, speed and time is given by

    distance = speed*time

    substituting the given values yields,

    distance = 343*6

    distance = 2058 m

    There are 1000 meters in 1 km so

    d = 2058/1000

    d = 2.058 km

    Therefore, the storm is about 2.058 km away when elapse time between the lightning and the thunderclap is 6 seconds.
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