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Physics
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Estimated answers are 1. valuable because they are determined accurately and slowly. 2. not useful because they are less accurate than a detailed calculation. 3. not useful because they are just a guess. 4. valuable because they force you to think about the problem and determine a value quickly.
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Which one makes the most sense to you?
i think...the last one.
Sounds like Fermi questions up in here! :D
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