A measurement of an electron's speed is 2.0 × 106 m/s and has an uncertainty of 10%. What is the minimum uncertainty in its position? (h = 6.626 × 10-34 J ? s, mel = 9.11 × 10-31 kg)
A) 0.91 nm
B) 1.8 nm
C) 2.7 nm
D) 2.8 nm
E) 5.0 nm
Answer: B
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