Physics, 12.11.2019 04:31 mathscience9301
Suppose a star the size of our sun, but of mass 8.0 times as great, were rotating at a speed of 1.0 revolution every 12 days. if it were to undergo gravitational collapse to a neutron star of radius 12 km, losing 3/4 of its mass in the process, what would its rotation speed be? assume the star is a uniform sphere at all times.
(a) assume that the thrown-off mass carries off no angular momentum, in rev/s
(b) assume that the thrown-off mass carries off its proportional share (3/4) of the initial angular momentum, in rev/s
Answers: 1
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
Suppose a star the size of our sun, but of mass 8.0 times as great, were rotating at a speed of 1.0...
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