A pulsar is a rapidly rotating neutron star that emits a radio beam the way a lighthouse emits a light beam. We receive

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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 1 (69.96 KiB) Viewed 46 times

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. Suppose a pulsar has a period of rotation of T = 0.0220 s that is increasing at the rate of 9.03 x 10-⁹ 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? (c) Suppose the pulsar originated in a supernova explosion seen 1180 years ago. Assuming constant a, find the initial T.