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1 pm = 1e-12 m. Estimate the minimum uncertainty in the position of an electron of mass 9.109 x 10^-31 kg if the error in its speed is 3 x 10^5 m/s. a) 386 x 10^-12 m b) 386 pm c) 1.93 x 10^-12 m d) 193 pm