The Oxygen Molecule (O₂)may Be Regarded as Two Masses Connected

question 55

Multiple Choice

The oxygen molecule (O₂) may be regarded as two masses connected by a spring.In vibrational motion,each oxygen atom alternately approaches,then moves away from the center of mass of the system.If each oxygen atom of mass m = 2.67 x 10^-26 kg has a vibrational energy of 1.6 x 10^-21 J and the effective spring constant is 50 N/m,then what is the amplitude of oscillation of each oxygen atom?

• A)3.2 x 10^-11 m
• B)1.6 x 10^-11 m
• C)1.1 x 10^-11 m
• D)8.0 x 10^-12 m

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