Tossup

Given these particles’ mean lifetime of 880 seconds and the time from freeze-out to the onset of BBNS, one can calculate (10[1])an abundance denoted Y. The timescale of these particles’ capture differentiates (10[1])two reactions that occur (10[1])in AGB stars and during supernovae, called the s- and r-processes. A different particle decays into one of these particles in the first step of the p-p chain. [emphasize] Above the Chandrasekhar (“chun-druh-SHAY-kur”) limit but below the TOV limit, these particles’ degeneracy pressure keeps massive (-5[1])stars from (-5[1])turning (10[1])into black holes. Pulsars are rapidly rotating members of a class of extremely dense stars (10[1])made of these particles. (10[2])For 10 points, name these subatomic particles with no charge. ■END■

ANSWER: neutrons (Y is the fractional abundance of helium.)
<McGill B, Other Science>
= Average correct buzz position

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Buzzes


Summary

TournamentEditionTUHConv. %Neg %Average Buzz
UK (North)UK5100%20%95.00
UK (South)UK7100%14%92.00
Northern CaliforniaUS4100%0%52.50
Southern CaliforniaUS7100%29%66.14
Eastern Canada (1)US4100%0%95.00
Eastern Canada (2)US9100%33%88.11
FloridaUS4100%50%102.75
Great LakesUS11100%36%87.27
Lower Mid-AtlanticUS9100%33%97.78
Upper Mid-AtlanticUS12100%25%97.92
MidwestUS9100%22%71.67
NorthUS4100%75%104.25
NortheastUS12100%50%101.75
PacificUS888%25%81.29
SoutheastUS12100%33%74.92
Upstate NYUS5100%20%92.80