Video: K thiab U yog dab tsi hauv physics?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Mechanical zog tsis sib npaug zos. U yog muaj zog thiab K yog kinetic zog.
Hauv qhov no, K txhais li cas hauv physics?
K (upper case) hauv physics feem ntau yog hais txog degrees Kelvin (piv txwv li kub) Ces k raws li nws tshwm sim (tus lej qis) hauv SI series ntawm cov ntawv rau ua ntej ntawm lub zog ntawm 10. m (piv txwv li tus lej qis) yog SI tus lej rau 1 txhiab (10^-3) (milli) k (piv txwv li tus lej qis) yog SI tus lej rau 1 txhiab (10^3) (kilo)
Ib tug kuj yuav nug, Delta K physics yog dab tsi? E = U + K = tas li. Kev ua haujlwm-zog theorem tau tham hauv Tshooj 7 hais txog qhov ua haujlwm W rau kev hloov pauv ntawm lub zog kinetic ntawm lub cev. W = [ Delta ] K . Kev hloov pauv ntawm lub zog muaj peev xwm ntawm lub cev tam sim no tuaj yeem cuam tshuam nrog cov haujlwm ua haujlwm ntawm lub system. [ Delta ]U = - [ Delta ] K = - W.
Hauv qhov no, U sawv cev rau dab tsi hauv physics?
- Hauv thermodynamics, U feem ntau yog siv los ua lub cim rau lub zog sab hauv. Tshwj xeeb, nws tau siv los ua lub cim rau lub zog gravitational thiab elastic muaj peev xwm zog. U . Greek tsab ntawv thiab lub npe: ua U upsilon. u = pib tshaj tawm.
U yog dab tsi hauv lub zog muaj peev xwm?
Muaj peev xwm zog , hais nyob rau hauv science li U , yog zog uas yog khaws cia nyob rau hauv ib yam khoom, tsis nyob rau hauv motion tab sis muaj peev xwm ua active. Thaum ib qho khoom txav mus los, muaj peev xwm zog hloov mus rau kinetic zog , uas yog zog ntawm kev tawm suab.
Pom zoo:
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Cov kauj ruam ntawm mitosis yog dab tsi thiab dab tsi tshwm sim hauv txhua qhov?
Mitosis muaj tsib theem sib txawv: interphase, prophase, metaphase, anaphase thiab telophase. Cov txheej txheem ntawm cell faib tsuas yog ua tiav tom qab cytokinesis, uas tshwm sim thaum lub sij hawm anaphase thiab telophase. Txhua theem ntawm mitosis yog tsim nyog rau cell replication thiab faib
Dab tsi yog node thiab Antinode hauv physics?
Node: Ib lub pas dej ua ke nrog lub nthwv dej uas lub nthwv dej muaj qhov tsawg kawg nkaus amplitude. Antinode: Ib qho taw tes raws li lub nthwv dej sawv ntsug uas cov nthwv dej muaj qhov siab tshaj plaws
Dab tsi yog vector thiab scalar hauv physics?
Qhov ntau yog ib qho vector lossis scalar. Ob pawg no tuaj yeem paub qhov txawv ntawm ib leeg los ntawm lawv cov ntsiab lus sib txawv: Scalars yog qhov ntau uas tau piav qhia tag nrho los ntawm qhov loj (lossis tus nqi lej) ib leeg. Vectors yog qhov ntau uas tau piav qhia tag nrho los ntawm qhov loj thiab qhov taw qhia
Dab tsi yog kinetic thiab muaj peev xwm zog hauv physics?
Lub zog muaj peev xwm yog lub zog khaws cia hauv ib qho khoom vim nws txoj haujlwm lossis kev teeb tsa. Kinetic zog yog lub zog ntawm ib yam khoom vim nws lub zog - nws cov lus tsa suab. Txhua hom hluav taws xob tuaj yeem hloov mus rau lwm hom zog