A Measurement of an Electron's Speed Is 2

Multiple Choice

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,m_el = 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