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If the mid-Atlantic Ocean is spreading at 3.0 cm per year, how many years has it taken for it to reach its present width of about 5000 km?
Express your answer to two significant figures and include the appropriate units.
4 years ago

Answers

R_scott
5.0E6 m / 3.0E-2 m/yr = 1.7E8 yr
4 years ago

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