A Molecule of Roughly Spherical Shape Has a Mass of 6.10

question 13

Multiple Choice

A molecule of roughly spherical shape has a mass of 6.10 × 10^-25 kg and a diameter of 0.70 nm.The uncertainty in the measured position of the molecule is equal to the molecular diameter.What is the minimum uncertainty in the speed of this molecule? (h = 6.626 × 10^-34 J ∙ s)

• A)0.78 m/s
• B)7.8 m/s
• C)78 m/s
• D)0.078 m/s
• E)0.0078 m/s

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