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6 November, 14:40

how long has africa and north america moved Africa and North America are moving away from each other at a velocity (rate) of 3 cm/year. b) Africa and North America are presently 6000 km apart.

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  1. 6 November, 18:28
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    Africa and North America have moved away from each other for 2 * 10⁸ years.

    Meaning they were right next to each other 200 million years ago.

    Explanation:

    Given,

    - Africa and North America are moving away from each other at a velocity (rate) of 3 cm/year.

    -Africa and North America are presently 6000 km apart.

    Speed = distance/time

    Time = distance/speed.

    Distance = 6000 km = 6000000 m

    Speed = 3 cm/year = 0.03 m/year

    Time = 6000000/0.03 = 2 * 10⁸ years.
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