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16 September, 06:42

Weddell seals make holes in sea ice so that they can swim down to forage on the ocean floor below. Measurements for one seal showed that it dived straight down from such an opening, reaching a depth of 0.30 km in a time of 5.0 min. what is the speed of the diving seal in m/s?

A. 0.60 m/s B. 1.0 m/s C. 1.6 m/s D. 6.0 m/s E. 10 m/s

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  1. 16 September, 09:59
    0
    B. 1 m/s

    Explanation:

    Metric unit conversions:

    0.3 km = 300m

    5 minutes = 5*60 = 300 seconds

    So if a seal can reach a depth of 300m in a time of 300 seconds, its diving speed is the distance divided by time duration

    v = s/t = 300/300 = 1m/s

    So B is the correct answer
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