[填空题]
Suppose a star the size of our0u2tx j0fwv0 x;l66m9fxrp zq Sun, but t3jl8*r y9x )fe5-tdvmq(xti with mass 8.0 times as great, were rotating at a speed of 1.0 revolution every 12 days.)i- qr3x5ttl(j ed8xfmt y*v9 If it were to undergo gravitational collapse to a neutron star of radius 11 km, losing three-quarters 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. $\times10^{9 }$ $rev/day$
Post time 2025-2-18 20:00:22
