Video: Vim li cas lub pob dov dawb thaum kawg nres?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum koj yob a pob Hauv av, theelectrons nyob rau hauv cov atoms ntawm qhov chaw hauv av thawb tawm tsam cov electrons hauv cov atoms ntawm qhov chaw ntawm koj pob uas yog kov hauv av. A dov pob nres vim qhov chaw uas nws dov resists nws cov lus tsa suab. A dov ballstops vim kev sib txhuam.
Raws li txoj cai, lub pob puas tuaj yeem yob mus ib txhis?
Yog li cov pob yuav tsum yob ntawm mus ib txhis . Qhov pob tsuas nres dov vim yog sab nraud quab yuam (kev sib txhuam) ua rau lub pob nres.
Ib sab saum toj no, vim li cas cov khoom txav ntawm qhov chaw du nres ntawm nws tus kheej? Cov khoom tsis yog nres ntawm nws tus kheej ; nws nres vim kev sib txhuam ntawm nws tus kheej thiab cov nto . Yog tias koj hais tias "tsis muaj kev sib txhuam," nws yuav qeeb vim huab cua tsis kam, tab sis nws yuav yeej tsis tau nres , vim hais tias cov huab cua resistanceforce txo qis raws li nws qhov ceev txo.
Cia li xav txog qhov no, vim li cas cov khoom thaum kawg nres nres?
Newton thawj txoj cai ntawm tsab ntawv tsa suab hais tias "An khoom thaum so nyob ntawm so thiab ib qho khoom hauv tsab ntawv tsa suab nyob hauv tsab ntawv tsa suab nrog tib lub nrawm thiab tib yam kev taw qhia tshwj tsis yog ua raws li lub zog tsis sib npaug. " Movingobjects , yog li ntawd nws tau ntseeg, thaum kawg yuav nres ; lub zog yog tsim nyog los khaws ib qho tsis pom kev.
Dab tsi ua rau lub pob yob?
Cov pob rolls vim: qhov kev sib txhuam tam sim no ntawm qhov chaw thawb lub atoms / cov khoom nyob rau hauv kev sib cuag nrog saum npoo los yog hauv av rov qab, li no nrog qhov nruab nrab ntawm huab hwm coj mus rau hauv adirection, pob hauv qab nto (piv txwv li. Qhov chaw tsis sib cuag) txav mus rau sab nraud lossis rov qab, ua rau pob rau yob.
Pom zoo:
Yuav ua li cas tshwm sim thaum magma txias thaum lub sij hawm lub pob zeb quizlet?
Raws li cov magma cools, loj thiab loj muaju tsim raws li lub pob zeb hardens. Yog tias magma tawm hauv lub ntiaj teb, lub pob zeb molten tam sim no hu ua lava. Thaum cov lava no txias rau ntawm lub ntiaj teb saum npoo, nws tsim cov pob zeb extrusive igneous. Lava txias sai heev, yog li cov pob zeb extrusive igneous tsis muaj crystals zoo
Thaum tus ncaws pob ncaws pob lub pob nrawm?
Thaum peb ncaws pob, lub zog peb siv rau nws ua rau nws nrawm nrawm ntawm 0 mus rau qhov ceev ntawm kaum ob kilometers ib teev. Thaum lub pob tso tawm ntawm ko taw, nws pib decelerate (tsis zoo acceleration) vim yog lub zog ntawm kev sib txhuam uas yog exerted rau nws (raws li peb tau pom nyob rau hauv cov piv txwv yav dhau los)
Vim li cas nws yog ib lub tswv yim zoo los cawm tag nrho cov txheej txheem ntawm koj cov extraction kom txog thaum kawg ntawm kev sim?
Kev ua yuam kev thaum lub sijhawm rho tawm (piv txwv li nqa nrog cov txheej txheem tsis raug), tuaj yeem daws tau yog tias cov kev daws tsis tau muab tso rau hauv lub thawv pov tseg! Cov khaubncaws sab nraud povtseg yuav tsum tau txais kev cawmdim kom txog thaum tom qab evaporation vim hais tias cov khoom xav tau yuav tsis soluble heev hauv cov kuab tshuaj siv
Yuav ua li cas thaum kawg ntawm lub hnub qub lub neej?
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Thaum koj sawv hauv lub tsheb ciav hlau subway thiab lub tsheb ciav hlau nres tam sim ntawd?
Thaum koj sawv hauv lub tsheb ciav hlau subway, thiab lub tsheb ciav hlau nres tam sim ntawd, koj lub cev tseem mus tom ntej. Tom qab koj pib koj lub tsheb kauj vab, thaum koj muab roj ntau dua, nws mus sai dua. Ib tug pitched baseball mus sai dua ib qho uas maj mam muab pov