Question

The first observation of injection locking was in two of these devices. For these devices, the Airy condition can be approximately satisfied by deadbeat escapements. (20[1])A classic example of a control system with a cart-pole apparatus involves maintaining (0[1])the stability of an “inverted” one of these (20[1])devices. (20[1])Harmonographs (20[3])draw Lissajous (20[3])(“LEASE-ah-zhu”) curves (20[1])from (20[1])the motion of these devices. (20[6])(*) Angular (10[1])velocity is proportional to the sine (10[1])of latitude (0[1])in a type of these devices that provided the first evidence of the Earth’s (10[2])rotation. (10[6])The (10[1])small angle approximation (10[1])equates (10[1])two pi (10[1])times the square root of length (10[1])over little g to the period of one of these devices. (10[1])For 10 points, name these devices that consist of a suspended mass swinging from a fixed (10[1])point. ■END■ (10[1])

ANSWER: pendulums [or pendula; accept Foucault pendulum or inverted pendulum; prompt on any type of watches or grandfather clocks or timepieces with “We’re looking for a component of that device.”]
<Lalit Maharjan, Science - Physics&gt; ~25017~ &lt;Editor: David Bass>
= Average correct buzz position

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Summary

2023 PACE NSC06/10/2023Y35100%49%0%67.83

Buzzes

PlayerTeamOpponentBuzz PositionValue
Alex XuCanyon CrestBelmont2420
Sinecio MoralesRockford Auburn AMaggie Walker A370
Kevin AdlerNorthmont BWalter Payton4520
Vincent WangIrvington AHunter A4620
Chris GoolsbyDetroit Catholic Central CChattahoochee B4720
Grace NuckollsWashingtonThomas Jefferson B4720
Tyler SongWinston Churchill BCincinnati Hills Christian4720
Jacob BartaDetroit Catholic Central ABelvidere4920
Yashwanth BajjiTroyInnovation Academy B4920
Dylan ChengThomas Jefferson AWoodland4920
Ali HamzehKinkaidChoate Rosemary Hall5020
Michael KarpovBarrington ADunbar5120
Shreyas SinghUniversity LabHeights5620
Sohum SukhatankarSt. Mark'sInnovation Academy A5620
Rohan NavaneethaSolonMaggie Walker B5620
Braden BoothDallas CountyJohns Creek B5620
Aneesh SwaminathanPlymouthThomas Jefferson C5620
Brielle RachRockford Auburn BWinston Churchill A5620
Yash SaxenaMaggie Walker ARockford Auburn A5710
Sam KonkelJohns Creek AWinnebago6310
Jiaxu LiuDetroit Country DayParkway West650
Ethan KralNorthmont ARichard Montgomery7910
Jiming ChenHinsdale CentralWaukee7910
Brodie HenryWest PointChattahoochee A8010
Eleanor HeydtMidtownCarbondale8010
Ella SheffieldMercer CountyStevenson B8010
Anthony ChalhoubDetroit Catholic Central BJohn Adams B8010
Thomas BelcherSaint JosephHoover B8010
Puna EkkaNew BrightonElkhorn North8010
Max KoldaJohn Adams ANorris8110
Tanay BodducherlaMira LomaThomas Jefferson D8410
Hatice CaliskanCarl SandburgMaggie Walker C8510
Alexa RosenbergHunter BWilliam Fremd8710
Monit KarmakerStevenson AMoberly9310
Ash FredericksonMexicoLincoln-Way East10410
Matthew HoustonNormanBarrington B12010
Owen ArnesonParkway WestDetroit Country Day12210