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dalissa12 Group TitleBest ResponseYou've already chosen the best response.0
Suppose a star the size of our Sun, but with mass 4.0 times as great, were rotating at a speed of 1.0 revolution every 5.0 days. If it were to undergo gravitational collapse to a neutron star of radius 15km , losing threequarters of its mass in the process, what would its rotation speed be? Assume that the star is a uniform sphere at all times, and that the lost mass carries off no angular momentum
 one year ago

swarup169 Group TitleBest ResponseYou've already chosen the best response.0
angular momemtum conservation mw=const. so 4m*(1/5)=m*w +3m*0 w=4/5 i.e. 4.0 revolution every 5.0 days.
 one year ago
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