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Consider the rotation of the Sun (M=1.989×1030 kg, R=6.955×108 m) if it were to collapse without losing mass into a neutron star with radius of R=11.3 km. Assume that the Sun and the neutron star are both solid spheres and that angular momentum is conserved during collapse. If the Sun's initial rotational period is 28.9 days, what would the new rotation period be? Express your answer in seconds.

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