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It takes 100,000 years for a plate to move about 2 kilometers. What's the rate of motion in centimeters per year??
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It takes 100,000 years for a plate to move about 2 kilometers. What's the rate of motion in centimeters per year??

User Jonathan Chevalier
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so just divide , speed = dist/time

so, 200000 cm/ 100000 year = 2 cm/year !!
User RGe
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