Video: Koj pom tus nqi ntawm g li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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 × 10−11N⋅m2/kg2, thiab yog denoted los ntawm tsab ntawv.
Pom zoo:
Koj pom tus nqi pes tsawg ntawm cos 7pi li cas?
VIDEO Kuj nug, koj puas pom tus nqi ntawm cot 7pi 6 li cas? cog 7pi / 6 Radians Cov cot ntawm 7 pib / 6 radians yog √3, tib yam li cot ntawm 7 pib / 6 radians nyob rau hauv degrees. Hloov 7 pib / 6 radians rau degrees multiply 7 pib / 6 Los ntawm 180 ° / = 210 °.
Yuav ua li cas koj pom tus nqi ntawm cosine ntawm daim duab peb sab?
Hauv txhua daim duab peb sab, lub cosine ntawm lub kaum sab xis yog qhov ntev ntawm sab uas nyob ib sab (A) faib los ntawm qhov ntev ntawm lub hypotenuse (H). Nyob rau hauv ib tug qauv, nws yog sau yooj yim li 'cos'. Feem ntau nco ntsoov li 'CAH' - lub ntsiab lus Cosine yog nyob ib sab ntawm Hypotenuse
Yuav ua li cas koj thiaj nrhiav tau tus nqi ploj ntawm tus nqi tsim?
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Yuav ua li cas koj thiaj nrhiav tau tus nqi siab tshaj plaws ntawm lub quadratic muaj nuj nqi?
Yog tias koj tau txais cov mis y = ax2 + bx + c, ces koj tuaj yeem pom tus nqi siab tshaj plaws uas siv cov mis max = c- (b2 / 4a). Yog tias koj muaj qhov sib npaug y = a (x-h) 2 + k thiab theatrem tsis zoo, ces qhov siab tshaj plaws yog k
Txhais li cas los ntawm tus nqi ntws ntawm tus nqi hluav taws xob?
Ib coulomb ib ob