Koj pom tus nqi ntawm g li cas?
Koj pom tus nqi ntawm g li cas?

Video: Koj pom tus nqi ntawm g li cas?

Video: Koj pom tus nqi ntawm g li cas?
Video: Zaj Dub - Cas Tsis Xaiv Koj_Nkauj Tawm Tshiab [Official MV] 2024, Kaum ib hlis
Anonim

Xam cov gravitational attraction nruab nrab ntawm ob lub qhov muag yuav tsum tau noj cov khoom ntawm ob pawg thiab dividingbythe square ntawm qhov deb ntawm lawv, ces multiplying uas. tus nqi los ntawm G . The equationisF=Gm1m2/r2.

Hauv qhov no, G tus nqi suav li cas?

Rau xam Lub zog ntawm lub ntiajteb txawj nqus ntawm anobject, siv tus qauv: quab yuam ntawm lub ntiajteb txawj nqus = mg, qhov twg m yog qhov loj ntawm theobject thiab g yog qhov acceleration ntawm cov khoom duetogravity. Txij li thaum g yog ib txwm 9.8 m / s ^ 2, tsuas yog muab cov khoom loj los ntawm 9.8 thiab koj yuav tau txais nws lub zog ntawm lub zog!

Kuj Paub tias G yog dab tsi? G yog qhov universal gravitation tas li, aka Newton qhov tas li. Kwv yees li ntawm 6.674 × 10−11m3⋅kg−1⋅s−2. g yog qhov acceleration dueto gravity, thiab yog kwv yees li 9.81m⋅s−2. Ntawm qhov tod tes, yog koj txhais li cas G thiab g txhais tau tias hauv SI, G yog lub ntsiab lus ua ntej 10^9, thiab isspelt Giga.

Tsis tas li ntawd, leej twg pom tus nqi ntawm G?

Cavendish

Big G yog dab tsi hauv physics?

Lub gravitational tas li, hu ua physics equations, yog ib qho empirical lub cev tas li. Nws yog siv los qhia lub zog ntawm ob yam khoom tshwm sim los ntawm lub ntiajteb txawj nqus. Thegravitationalconstant tshwm nyob rau hauv Isaac Newton txoj cai thoob ntiaj teb ntawm gravitation. 6.67430 × 1011N⋅m2/kg2, thiab yog denoted los ntawm tsab ntawv.

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