4.9×10−5m4.9\times 10^{-5}\text{m}4.9×10−5m
4.9×10−4m4.9\times 10^{-4}\text{m}4.9×10−4m
4.9×10−3m4.9\times 10^{-3}\text{m}4.9×10−3m
4.9×10−6m4.9\times 10^{-6}\text{m}4.9×10−6m
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