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Question
Using data from the previous problem, find the increase in rotational kinetic energy, given the core's mass is 1.3 times that of our Sun. Where does this increase in kinetic energy come from?
$1.9\times 10^{45}\textrm{ J}$
The gain in rotational kinetic energy comes at the expense of gravitational potential energy.
Solution Video

# OpenStax College Physics Solution, Chapter 34, Problem 18 (Problems & Exercises) (5:17)

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