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A triatomic molecule is modeled as follows: mass m is at the origin, mass 2m is...

A triatomic molecule is modeled as follows: mass m is at the origin, mass 2m is at x=a, and mass 3m is at x=2a. What is the moment of inertia about the center of mass?
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The moment of inertia of the Triatomic molecule about the

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