Koj txhais li cas los ntawm kev quab yuam?

Video: Koj txhais li cas los ntawm kev quab yuam?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Drag Force . A rub zog yog cov tsis kam zog tshwm sim los ntawm kev txav ntawm lub cev los ntawm cov kua dej, xws li dej lossis cua. A rub zog ua tawm tsam rau cov kev taw qhia ntawm cov dej ntws tawm. Qhov no yog qhov txheeb ze tshaj tawm ntawm lub cev thiab cov kua dej.

Ntawm no, qhov piv txwv ntawm kev quab yuam yog dab tsi?

Huab cua kuj yog ib qho piv txwv ntawm rub zog , yog zog uas cov khoom xav tias thaum lawv txav los ntawm cov kua (kua lossis roj). Zoo ib yam li kinetic kev sib txhuam, rub zog yog reactive vim hais tias nws tsuas yog tshwm sim thaum cov khoom txav mus thiab nws taw tes rau qhov kev taw qhia ntawm qhov khoom txav los ntawm cov kua.

Tsis tas li ntawd, dab tsi yog luag hauv science txhais? Luag (physics) Rau ib yam khoom uas txav los ntawm cov kua lossis roj, luag yog tus lej ntawm tag nrho cov aerodynamic lossis hydrodynamic rog nyob rau hauv cov kev taw qhia ntawm cov kua dej sab nraud. Yog li ntawd nws ua rau tawm tsam qhov kev txav ntawm cov khoom, thiab hauv lub tsheb uas muaj zog nws tau kov yeej los ntawm kev thawb.

Ntawm no, dab tsi yog lub zog rub los ntawm?

Luag yog mechanical zog . Nws yog tsim los ntawm kev sib cuam tshuam thiab kev sib cuag ntawm lub cev nrog cov kua (kua lossis roj). Nws tsis yog generated los ntawm ib zog teb, nyob rau hauv lub siab ntawm ib tug gravitational teb los yog ib tug electromagnetic teb, qhov twg ib yam khoom muaj peev xwm cuam tshuam rau lwm yam khoom yam tsis tau nyob rau hauv lub cev.

Puas yog lub zog?

Cov nqa zog , nqa zog los yog yooj yim nqa yog qhov sum ntawm tag nrho cov zog ntawm lub cev ntawd zog nws txav mus rau perpendicular mus rau cov kev taw qhia ntawm ntws. Hom ntau tshaj ntawm nqa yog ib tug tis ntawm ib tug aircraft. Qhov kev piav qhia yooj yim tshaj plaws yog tias lub tis deflects cua downwards, thiab cov tshuaj tiv thaiv thawb lub tis nce.

Pom zoo:

Yuav ua li cas koj ua hauj lwm tawm lub resultant quab yuam siv ib tug parallelogram ntawm rog?

Txhawm rau nrhiav qhov tshwm sim, koj yuav ua ib qho parallelogram nrog ob sab sib npaug ntawm ob lub zog siv. Cov kab pheeb ces kaum ntawm no parallelogram yuav muab sib npaug zos rau lub resultant quab yuam. Qhov no yog hu ua parallelogram of force law

Dab tsi yog 2 hom kev quab yuam ntawm kev nyiam?

Cov rog no tuaj yeem muab faib ua 2 hom: Intramolecular rog: Intramolecular quab yuam ntawm attraction yog lub zog ntawm attraction uas khaws ib lub molecule ua ke. Intermolecular rog: Intermolecular rog yog lub zog ntawm kev nyiam lossis kev tawm tsam uas ua haujlwm ntawm cov khoom nyob sib ze (atoms, molecules lossis ions)

Puas yog kev sib txhuam quab yuam conservative los yog nonconservative?

Lub zog uas tsis khaws lub zog yog hu ua nonconservative lossis dissipative rog. Kev sib txhuam yog lub zog tsis ruaj khov, thiab muaj lwm yam. Ib qho kev sib txhuam-hom quab yuam, zoo li huab cua tsis kam, yog lub zog tsis ruaj khov. Lub zog uas nws tshem tawm ntawm lub cev tsis muaj nyob rau hauv lub system rau kinetic zog

Vim li cas kev sib txhuam quab yuam tsis yog kev ruaj ntseg?

Lub zog yog hais tias tsis yog-conservative thaum ua hauj lwm tawm tsam nws tsis tseg los ntawm lub cev uas yog txav los ntawm lub zog. Ib qho piv txwv zoo ntawm hom kev quab yuam tsis yog kev sib txhuam. Thaum lub cev txav tawm tsam kev sib txhuam, kev ua haujlwm yuav tsum tau kov yeej kev sib txhuam. Kev ua haujlwm yog lub zog thiab yog li nws tsis tuaj yeem poob