In this experiment, the rotating disk is treated as a uniform, flat disk, however, it does not have exactly this shape because of the spools in the center. How does this affect the rotational inertia of the disk and why? Select all that apply.$$

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The rotational inertia of the disk is slightly larger...

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$...$because of the additional vertical thickness provided by the spools.

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$...$because the disk has more than the measured amount of mass.

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$...$because more of its mass is concentrated near the axis of rotation.

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The rotational inertia of the disk is slightly smaller...