If the Location of a Particular Electron Can Be Measured

question 45

Multiple Choice

If the location of a particular electron can be measured only to a precision of​ 0.069 nm,what is the minimum uncertainty in the electron's velocity?
(m_e=9.109×10^-31 kg,c=3.00×10⁸ m/s,h=6.63×10^-34 J·s)

• A)​8.4×10⁵ m/s
• B)​​2.2×10⁵ m/s
• C)​​8.4×10^-4 m/s
• D)1​​×10^-6 m/s
• E)​​1.7×10^-13 m/s

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