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Observation of the formation of these phenomena is the general goal of nondestructive testing of ferrous compounds using MPI. In quasi-static conditions, the power dissipation due to these phenomena is inversely proportional to a constant that is 1 for a sheet and 2 for a wire. Waste sorting at recycling facilities use these phenomena to separate metallic materials. In transformers, power loss caused by these phenomena can be minimized using laminated conductors and ferrite cores. Generation of these phenomena is used in braking systems often employed by roller coasters. These phenomena form due to a magnetic response as a consequence of Lenz’s law. For 10 points, what phenomena consist of electric charges moving in closed loops during induction, named for their resemblance to whirlpools? ■END■
| California | 2025-02-01 | Y | 3 | 100% | 0% | 67% | 107.67 |
| Florida | 2025-02-01 | Y | 2 | 50% | 0% | 100% | 124.00 |
| Lower Mid-Atlantic | 2025-02-01 | Y | 6 | 67% | 0% | 17% | 83.50 |
| Midwest | 2025-02-01 | Y | 6 | 100% | 0% | 17% | 87.83 |
| North | 2025-02-01 | Y | 3 | 67% | 0% | 67% | 115.50 |
| Northeast | 2025-02-01 | Y | 5 | 80% | 0% | 60% | 106.25 |
| Overflow | 2025-02-01 | Y | 5 | 80% | 0% | 20% | 85.25 |
| South Central | 2025-02-01 | Y | 2 | 100% | 0% | 50% | 111.50 |
| Southeast | 2025-02-01 | Y | 4 | 100% | 0% | 0% | 75.75 |
| UK | 2025-02-01 | Y | 10 | 90% | 0% | 10% | 78.11 |
| Upper Mid-Atlantic | 2025-02-01 | Y | 8 | 100% | 0% | 13% | 88.13 |
| Upstate NY | 2025-02-01 | Y | 3 | 100% | 0% | 33% | 97.00 |
| Player | Team | Opponent | Buzz Position | Value |
|---|---|---|---|---|
| Stan Melkumian | Purdue | Georgetown B | 30 | 10 |
| Rasheeq Azad | UNC B | Liberty B | 45 | 10 |
| Michael Sun | Brandeis B | Harvard B | 47 | -5 |
| Delia Cropper | Oxford A | Southampton A | 56 | 10 |
| Joel Dicker | Southampton B | Manchester | 57 | -5 |
| Nicholas Nguyen | Florida B | Valencia A | 57 | -5 |
| Ian Saylor | Wisconsin B | Winona State | 57 | -5 |
| Stefan Stealey-Euchner | ASU | TAMU | 57 | -5 |
| Swapnil Garg | UC Berkeley A | UC Berkeley B | 59 | -5 |
| Alec Riso | Cornell C | RIT B | 65 | 10 |
| Rachel Bentham | Cambridge B | Warwick B | 65 | 10 |
| Rafael Castro | Imperial B | Sheffield | 65 | 10 |
| Jerry Vinokurov | John Jay College | Maryland A | 65 | 10 |
| Hrishit Chaudhuri | NYU B | Yale A | 67 | 10 |
| Nathan Sheffield | MIT A | Tufts A | 67 | 10 |
| Parker McCoig | Tennessee A | Vanderbilt A | 68 | 10 |
| Hamish Campbell | Durham | Oxford B | 68 | 10 |
| Alex Baker | Cambridge C | Warwick A | 69 | 10 |
| Aidan Jones | Liberty A | Wake Forest | 70 | 10 |
| Michael Zhou | Georgia Tech A | Georgia Tech C | 70 | 10 |
| Alex Akridge | Indiana A | Indiana B | 71 | 10 |
| Samir Sarma | Georgia Tech D | Bruin A | 71 | 10 |
| Oscar O'Flanagan | Imperial A | NYU C | 71 | 10 |
| Ryan Rosenberg | NYU A | Columbia B | 71 | 10 |
| June Yin | WashU B | Missouri | 73 | 10 |
| Pranaav Senthilkumar | Cornell D | Binghamton A | 74 | -5 |
| Sam Macchi | Vassar A | Johns Hopkins A | 74 | 10 |
| Christopher Joseph | Notre Dame C | Northwestern A | 74 | -5 |
| Kaiser Xiao | UCLA | UCSD | 75 | 10 |
| Linus Luu | Cambridge D | Bristol | 83 | 10 |
| Zachary Leblang | Penn B | George Washington B | 84 | -5 |
| Andrew Wang | Illinois A | Chicago A | 85 | 10 |
| Jacob Harl | Missoui S&T | WashU A | 85 | 10 |
| Gus Vanskike | Maryland B | Penn A | 87 | 10 |
| Elliott Gomes | Dartmouth A | Brown A | 88 | -5 |
| Azura Gollamudi | Northwestern B | Notre Dame B | 88 | 10 |
| Jiping Fang | Illinois C | Chicago C | 89 | 10 |
| Jackson McDonald | Alabama A | Louisville A | 94 | 10 |
| Juan Landaeta | Florida State A | Florida A | 95 | -5 |
| Arjun Bothra | Haverford A | Columbia C | 96 | 10 |
| Jacob Finley | Notre Dame A | Stanford B | 99 | 10 |
| Owen Gilroy | Texas B | Texas A | 99 | 10 |
| Jerry Xu | Claremont B | Claremont A | 102 | -5 |
| Cade Reinberger | RIT A | ESF A | 102 | 10 |
| Koji Bilbao | Duke | Virginia Tech A | 102 | 10 |
| Oscar Despard | Cambridge A | Cambridge E | 102 | 10 |
| Christopher Dech | Brandeis A | Harvard A | 102 | -5 |
| JD Kroth | Iowa State | Wisconsin A | 107 | 10 |
| Nikhil Chellam | Northwestern A | Notre Dame C | 115 | 0 |
| Shardul Parthasarathy | Illinois B | Chicago D | 116 | -5 |
| Connor Ronan | South Carolina | Virginia A | 116 | -5 |
| Yash Tiwari | Minnesota B | Carleton | 117 | -5 |
| Chase Woodson | Virginia A | South Carolina | 117 | 10 |
| Nikhil Nair | BU | UMass Boston | 117 | 10 |
| Jerry Zhang | Harvard B | Brandeis B | 117 | 10 |
| Aum Mundhe | Rutgers A | George Washington A | 121 | 10 |
| Kevin Park | Claremont A | Claremont B | 124 | 10 |
| Rohan Shelke | UC Berkeley B | UC Berkeley A | 124 | 10 |
| Alvin Guo | Chicago D | Illinois B | 124 | 10 |
| Aaron Marchand | Carleton | Minnesota B | 124 | 0 |
| Samuel Kassover | George Washington B | Penn B | 124 | 10 |
| Peter Smith | Binghamton A | Cornell D | 124 | 10 |
| Leo Law | Florida A | Florida State A | 124 | 10 |
| Michael Eng | UNC C | Liberty C | 124 | 0 |
| Alexandra Knight | Liberty C | UNC C | 124 | 0 |
| Chris Yoo | William & Mary | UNC D | 124 | 0 |
| Benjamin Liu | Oxford C | LSE | 124 | 10 |
| Kai Madgwick | Manchester | Southampton B | 124 | 0 |
| Clete Reinberger | Valencia A | Florida B | 124 | 0 |
| Henry Bon | Winona State | Wisconsin B | 124 | 10 |
| Arjun Nageswaran | Harvard A | Brandeis A | 124 | 10 |
| Mason Yu | Brown A | Dartmouth A | 124 | 0 |
| Brielle Rach | Iowa | Georgetown A | 124 | 10 |
| Seth Webb | TAMU | ASU | 124 | 10 |