A pulsar is a rapidly rotating neutron star that emits a, Ask an Expert

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A pulsar is a rapidly rotating neutron star that emits a radio beam the way a lighthouse emits a light beam. We receive a radio pulse for each rotation of the star. The period T of rotation is found by measuring the time between pulses. The pulsar in the Crab nebula has a period of rotation of T = 0.033 s that is increasing at a rate of 1.26 x 10-5 s/y.

(a) What is the pulsar's angular acceleration a?

(b) If a is constant, how many years from now will the pulsar stop rotating?

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