Pulsars are neutron stars that emit X rays and other radiation insuch a way that we on Earth receive pulses of radiation from thepulsars at regular intervals equal to the period that they rotate.Some of these pulsars rotate with periods as short as 1 ms! TheCrab Pulsar, located inside the Crab Nebula in the constellationOrion, has a period currently of length 33.085 ms. It is estimatedto have an equatorial radius of 15 km, an average radius for aneutron star.
(a) What is the value of the centripetal acceleration of an objecton the surface at the equator of the pulsar?
1 m/s2
(b) Many pulsars are observed to have periods that lengthenslightly with time, a phenomenon called "spin down." The rate ofslowing of the Crab Pulsar is 3.50 10-13 s per second, whichimplies that if this rate remains constant, the Crab Pulsar willstop spinning in 9.50 1010 s (about 3000 years from today). What isthe tangential acceleration of an object on the equator of thisneutron star?
Pulsars are neutron stars that emit X rays and other radiation insuch a way that we on Earth receive pulses of radiation from thepulsars at regular intervals equal to the period that they rotate.Some of these pulsars rotate with periods as short as 1 ms! TheCrab Pulsar, located inside the Crab Nebula in the constellationOrion, has a period currently of length 33.085 ms. It is estimatedto have an equatorial radius of 15 km, an average radius for aneutron star.
(a) What is the value of the centripetal acceleration of an objecton the surface at the equator of the pulsar?
1 m/s2
(b) Many pulsars are observed to have periods that lengthenslightly with time, a phenomenon called "spin down." The rate ofslowing of the Crab Pulsar is 3.50 10-13 s per second, whichimplies that if this rate remains constant, the Crab Pulsar willstop spinning in 9.50 1010 s (about 3000 years from today). What isthe tangential acceleration of an object on the equator of thisneutron star?
