How many magnetic pole reversals has Earth endured during the age of humans, 3.9 million years, if the average time between reversals is 700,000 years? Take the ratio of the length of time that has passed over the average time between reversals.
How many magnetic pole reversals has Earth endured during the age of humans, 3.9 million years, if the average time between reversals is 700,000 years? Take the ratio of the length of time that has passed over the average time between reversals.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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Transcribed Image Text:**Educational Content: Magnetic Pole Reversals**
**Question:**
How many magnetic pole reversals has Earth endured during the age of humans, 3.9 million years, if the average time between reversals is 700,000 years?
**Solution Approach:**
To determine the number of magnetic pole reversals, take the ratio of the length of time that has passed over the average time between reversals.
Calculation:
- Total time period: 3.9 million years
- Average time between reversals: 700,000 years
Divide the total time by the average time between reversals to find the number of reversals.
**Explanation:**
This calculation will provide an estimate of how many times Earth's magnetic poles have reversed during the specified time period, helping to better understand Earth's geophysical processes over the ages.
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