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The Crab Pulsar Is a Neutron Star, Rotating with a Period

Question 41

Multiple Choice

The Crab Pulsar is a neutron star, rotating with a period of about 33.085 ms33.085 \mathrm{~ms} . It is estimated to have an equatorial radius of 15 km15 \mathrm{~km} , about average for a neutron star. The pulsar is slowing in its rotation so that it is expected to come to rest 9.5×1010 s9.5 \times 1010 \mathrm{~s} in the future. Assuming it is slowing with a constant angular acceleration, what is the tangential acceleration of an object on the neutron star's equator?


A) 3.2×1010 m/s23.2 \times 10^{-10} \mathrm{~m} / \mathrm{s}^{2}
B) 2.0×109 m/s22.0 \times 10^{-9} \mathrm{~m} / \mathrm{s}^{2}
C) 4.8×106 m/s24.8 \times 10^{-6} \mathrm{~m} / \mathrm{s}^{2}
D) 3.0×105 m/s23.0 \times 10^{-5} \mathrm{~m} / \mathrm{s}^{2}
E) 7.6×107 m/s27.6 \times 10^{-7} \mathrm{~m} / \mathrm{s}^{2}

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