According to a model described in the text, a neutron star has a radius of about 10 km. assume that the pulses occur once per rotation. according to einstein’s theory of relatively, nothing can move faster than the speed of light. check to make sure that this pulsar model does not violate relativity. calculate the rotation speed of the crab nebula pulsar at its equator, given its period of 0.033 s. (remember that distance equals velocity × time and that the circumference of a circle is given by 2πr).