A diatomic molecule consists of two point masses, m1 and m2, separated by a distance r. Find the moment of inertia through the center of mass about an axis perpendicular to the molecular axis.
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m1m2r2/(m1 + m2)
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[(m1m2/m1) + m2]r2
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(m1 + m2)/m1m2r2
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(m1 + m1)r2 /m1m2
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m1m2r2/m1