Dab tsi yog Alpha hauv rotational physics?
Dab tsi yog Alpha hauv rotational physics?

Video: Dab tsi yog Alpha hauv rotational physics?

Video: Dab tsi yog Alpha hauv rotational physics?
Video: Saum neej tsis yeej hauv dab tsis tseg.9/10/2018 2024, Kaum ib hlis
Anonim

Angular acceleration yog tus nqi hloov ntawm angular tshaj tawm. Hauv SI units, nws yog ntsuas hauv radians ib ob squared (rad/s2), thiab feem ntau yog txhais los ntawm tsab ntawv Greek alpha ( α ).

Tom qab ntawd, ib tug kuj yuav nug, Alpha physics yog dab tsi?

Tsab ntawv alpha sawv cev rau ntau lub tswv yim hauv physics thiab chemistry, suav nrog alpha radiation, angular acceleration, alpha hais, alpha carbon thiab lub zog ntawm electromagnetic cuam tshuam (raws li Fine-structure tas li). Alpha kuj sawv cev rau thermal expansion coefficient ntawm ib tug compound nyob rau hauv lub cev chemistry.

Ib yam li ntawd, W txhais li cas hauv rotational motion physics? Rau txhais angular tshaj tawm, peb ua raws tib lub ntsiab lus tab sis peb siv qhov kev hloov ntawm lub kaum sab xis ntawm ib qho kev hloov hauv lub sijhawm. Angular Kev tshaj tawm yog sawv cev los ntawm tsab ntawv Greek omega, ( w ), thiab yog txhais los ntawm. Qhov kev txhais no muab peb cov qauv.

Cov lus nug tseem yog, koj ua li cas xam alpha physics?

Angular acceleration α yog txhais raws li tus nqi hloov ntawm angular tshaj tawm. Hauv kev sib npaug daim ntawv, angular acceleration yog qhia raws li nram no: α = ΔωΔt α = Δ ω Δ t, qhov twg Δω yog qhov kev hloov ntawm qhov nrawm nrawm thiab Δt yog qhov hloov pauv ntawm lub sijhawm.

Dab tsi yog cov cim qhia ntawm ω thiab α?

ω yog qhov zoo thiab α yog zero. "Slowing" txhais tau tias ω thiab α muaj opposite kos npe , tsis yog li ntawd α yog qhov tsis zoo.

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