Video: Yuav ua li cas FC xam nyob rau hauv physics?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub zog centripetal yog ntsuas hauv Newton thiab yog xam Raws li qhov loj (hauv kg), muab faib los ntawm tangential tshaj tawm (hauv meters ib ob) squared, muab faib los ntawm lub vojvoog (hauv meters). Qhov no txhais tau hais tias yog tangential tshaj tawm ob npaug, lub zog yuav quadruple.
Ntxiv mus, dab tsi yog lub mis rau xam lub zog centrifugal?
Txiav txim siab qhov nrawm ntawm qhov khoom. Nws tuaj yeem sib npaug li 5 m / s. Yog koj paub cov angular tshaj tawm tsuas yog, koj tuaj yeem siv cov mis v = ω * 2 * π * r los xam qhov nrawm. Siv qhov sib npaug ntawm lub zog centrifugal: F = m * v^2 / r.
Tsis tas li ntawd, qhov ntsuas ntawm centripetal acceleration yog dab tsi? Centripetal acceleration (a) yog ntsuas hauv meters ib thib ob ib ob (ms-2). Nws yog ib txwm coj mus rau qhov chaw ntawm lub voj voog.
Kuj paub yog, dab tsi yog lub zog centripetal hauv physics?
A lub zog centripetal (los ntawm Latin centrum, "center" thiab petere, "mus nrhiav") yog a zog uas ua rau lub cev ua raws txoj kev nkhaus. Nws cov kev taw qhia yog ib txwm orthogonal mus rau lub zog ntawm lub cev thiab mus rau lub taag point ntawm lub instantaneous centre ntawm curvature ntawm txoj kev.
Vim li cas lub zog centripetal sib npaug li qhov hnyav?
Yog tag nrho zog ua haujlwm ntawm lub cev yog C thiab W ( centripetal thiab hnyav ) thiab lub cev tsis txav (a acceleration a = 0), f = ma = 0 = C + W; ces C = -W, the lub zog centripetal yuav tsum yog sib npaug thiab opposite rau lub hnyav . Thiab yog vim li cas lub zog centripetal thiab hnyav yog " sib npaug "hauv koj li cas.
Pom zoo:
Yuav ua li cas cov txheej txheem ntawm cell faib nyob rau hauv eukaryotes feem ntau zoo ib yam li cell faib nyob rau hauv prokaryotes?
Tsis zoo li eukaryotes, prokaryotes (uas suav nrog cov kab mob) tau txais ib hom kev faib cell hu ua binary fission. Hauv qee qhov, cov txheej txheem no zoo ib yam li mitosis; Nws yuav tsum tau rov ua dua ntawm cov cell chromosomes, cais ntawm cov theej DNA, thiab kev sib cais ntawm niam txiv cell cytoplasm
Yuav ua li cas resistors coj nyob rau hauv series thiab nyob rau hauv parallel?
Txhua tus resistor nyob rau hauv ib tug series Circuit Court muaj tib tus nqi ntawm tam sim no ntws los ntawm nws. Txhua tus resistor nyob rau hauv ib qho hluav taws xob sib txuas muaj tib qhov hluav taws xob tag nrho ntawm qhov siv rau nws. Qhov tam sim no ntws los ntawm txhua tus resistor nyob rau hauv ib qho kev sib txuas sib txuas sib txawv, nyob ntawm qhov tsis kam
Yuav ua li cas koj xam ua nyob rau hauv voltage?
Lub peev xwm built-in (ntawm 300 K) sib npaug fi = kT/q ln(1016 x 9 x 1017/ni2) = 0.77 V, siv kT/q = 25.84 mV thiab ni = 1010 cm-3. Lub peev xwm ua tau (ntawm 100 ° C) sib npaug fi = kT/q ln(1016 x 9 x 1017/ni2) = 0.673 V, siv kT/q = 32.14 mV thiab ni = 8.55 x 1011 cm-3 (los ntawm Piv txwv 20)
Yuav ua li cas yog ib co qauv nyob rau hauv landforms nyob rau hauv lub ntiaj teb no?
Cov txheej txheem ntawm lub cev no ua rau cov roob, tiaj, toj, thiab toj siab, plaub hom av loj. Phaj tectonics tuaj yeem tsim cov roob thiab toj roob hauv pes thaum yaig tuaj yeem hnav cov av los tsim cov hav thiab hav zoov
Yuav ua li cas koj xam lub sij hawm nyob rau hauv physics?
Koj tuaj yeem siv cov mis sib npaug d = rt uas txhais tau hais tias kev ncua deb sib npaug ntawm lub sijhawm sijhawm. Txhawm rau daws kom nrawm lossis tus nqi siv cov qauv rau kev ceev, s = d / t uas txhais tau tias ceev sib npaug sib npaug ntawm lub sijhawm. Yuav kom daws tau lub sij hawm siv cov mis rau lub sij hawm, t = d / s uas txhais tau hais tias lub sij hawm sib npaug sib npaug zos faib los ntawm ceev