Question
Density perturbations named for the constancy of this quantity are fluctuations in relative energy densities that are contrasted with primordial adiabatic density perturbations. Setting this quantity to zero and solving for rho in the first Friedmann equation gives the critical density. W·MAP’s measurement of the (*) density parameter as 1.02 implies that this quantity is zero. Negative values of this quantity imply a hyperbolic universe. Gravitational lensing results from an increase in this quantity’s magnitude near massive objects that can be analogized to placing a weight on a stretched piece of fabric. For 10 points, name this geometric quantity whose global value would indicate whether the universe is flat. ■END■
ANSWER: curvature of the universe [accept isocurvature density perturbations]
<Lalit Maharjan, Science - Astronomy> ~24781~ <Editor: David Bass>
= Average correct buzz position
Summary
2023 PACE NSC | 06/10/2023 | Y | 33 | 67% | 0% | 0% | 91.27 |
Buzzes
Player | Team | Opponent | Buzz Position | Value |
---|---|---|---|---|
Rushil Murikinati | Plymouth | Troy | 45 | 0 |
Camden Williams | Mexico | Thomas Jefferson A | 50 | 0 |
Shreyas Singh | University Lab | Mira Loma | 54 | 0 |
Michael Karpov | Barrington A | Chattahoochee A | 63 | 10 |
Anish Jindal | Parkway West | Hoover B | 63 | 0 |
Ali Hamzeh | Kinkaid | Solon | 63 | 10 |
Aryan Pathak | Lake Highland | Maggie Walker C | 63 | 10 |
Kaiwen Xiao | Irvington A | Barrington B | 64 | 0 |
Russell Dillak | Northmont B | Belvidere | 64 | 10 |
Arnou Thammarak | New Brighton | Johns Creek B | 64 | 0 |
Sophie Higgs | Richard Montgomery | William Fremd | 65 | 10 |
Bernie Jin | Winston Churchill B | Dunbar | 65 | 0 |
Sky Hong | Choate Rosemary Hall | Stevenson A | 66 | 0 |
Aaryan Sumesh | Thomas Jefferson C | Hinsdale Central | 67 | 10 |
Vardhan Agnihotri | St. Mark's | Detroit Catholic Central A | 72 | 10 |
Brielle Rach | Rockford Auburn B | Elkhorn North | 72 | 0 |
Thomas Belcher | Saint Joseph | Winnebago | 73 | 10 |
Ella Sheffield | Mercer County | Heights | 81 | 0 |
Timothy Porter | Maggie Walker A | Norris | 84 | 10 |
Tarun Devi | Chattahoochee B | Northmont A | 87 | 0 |
Joseph Harrison | Detroit Catholic Central C | Hunter B | 90 | 0 |
Sean Harbison | West Point | Cincinnati Hills Christian | 90 | 0 |
Charles Heydt | Midtown | Rockford Auburn A | 103 | 10 |
Jeffrey Xu | Johns Creek A | Detroit Country Day | 105 | 0 |
Hayden Qi | Johns Creek B | New Brighton | 107 | 10 |
Ave Rieger | Northmont A | Chattahoochee B | 107 | 0 |
Monit Karmaker | Stevenson A | Choate Rosemary Hall | 107 | 0 |
Anila Moparthi | Lincoln-Way East | John Adams B | 107 | 10 |
Hayden Ley | Washington | Norman | 107 | 0 |
Dennis Yang | Troy | Plymouth | 107 | 10 |
Matthew Kohn | Hunter A | Thomas Jefferson B | 107 | 10 |
Braden Booth | Dallas County | Winston Churchill A | 107 | 10 |
Eric Hu | Maggie Walker B | Moberly | 108 | 10 |
Dylan Cheng | Thomas Jefferson A | Mexico | 108 | 10 |
Kaushik Gollamudi | Barrington B | Irvington A | 108 | 10 |
Riona Duncan | Walter Payton | Innovation Academy A | 108 | 0 |
Tony Han | Carbondale | John Adams A | 108 | 10 |
Jiaxu Liu | Detroit Country Day | Johns Creek A | 108 | 10 |
Charlie Bork | Elkhorn North | Rockford Auburn B | 108 | 10 |
Aiden Dombrosky | Hoover B | Parkway West | 108 | 0 |
Aatreyo Bhattacharyya | Mira Loma | University Lab | 108 | 0 |
Adhav Ravikumar | Innovation Academy A | Walter Payton | 108 | 0 |
Brayden Ferrell | Heights | Mercer County | 108 | 0 |
Varun Venkatagiri | Innovation Academy B | Waukee | 108 | 0 |
Anthony Chalhoub | Detroit Catholic Central B | Woodland | 108 | 10 |