What is the rotational inertia of a solid iron disk of mass 41.0 kg with a thickness of 5.00 cm and radius of 30.0 cm, about an axis perpendicular to the disk and passing through its center?

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0.980 kg m^{2}

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0.761 kg m^{2}

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1.85 kg m^{2}

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2.29 kg m^{2}