Your answer is partially correct. 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 = 0.0379 s that is increasing at the rate of 3.61 x 10-6 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 777 years ago. Assuming constant a, find the initial T. (a) Number -4.98e-10 Units rad/s^2 (b) Number 1.05e+4 Units years (c) Number i 0.040 Units

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Your answer is partially correct.
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 = 0.0379 s that is increasing at the rate of 3.61 x 10-6 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 777 years ago. Assuming constant a,
find
the initial T.
(a) Number
-4.98e-10
Units
rad/s^2
(b) Number
1.05e+4
Units
years
(c) Number
i
0.040
Units
Transcribed Image Text:Your answer is partially correct. 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 = 0.0379 s that is increasing at the rate of 3.61 x 10-6 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 777 years ago. Assuming constant a, find the initial T. (a) Number -4.98e-10 Units rad/s^2 (b) Number 1.05e+4 Units years (c) Number i 0.040 Units
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