Ib tug quab yuam yog ib quab yuam uas siv rau ib yam khoom los ntawm ib tug neeg lossis lwm yam khoom. Yog hais tias ib tug neeg thawb lub rooj hla chav tsev, ces muaj ib qho kev siv quab yuam ua raws li qhov khoom. … Lub zog ib txwm yog lub zog txhawb nqa rau ntawm ib qho khoom uas sib cuag nrog lwm yam khoom ruaj khov.
Cov piv txwv ntawm kev siv dag zog yog dab tsi?
piv txwv yooj yim suav nrog:
- Koj tuaj yeem thawb ntawm lub qhov rooj qhib nws.
- Koj nqa tau ib yam khoom tawm hauv pem teb.
- Koj tuaj yeem pov pob.
- cua tuaj thawb koj.
- Lub tshuab tuaj yeem thawb ib yam.
Yuav ua li cas thaum siv zog?
Technically, thaum ib yam dab tsi raug thawb lossis rub peb hais tias "ib qho quab yuam siv rau qhov khoom". Yuav ua li cas tshwm sim rau cov khoom thaum lub zog siv? … Thaum ib yam khoom nyob rau hauv so, siv lub zog yuav ua rau nws pib txav. Yog tias ib yam dab tsi txav mus, lub zog raug siv rau nws tuaj yeem ua rau nws qeeb thiab nres nws.
Yuav ua li cas sib npaug zog?
Yog tias lub zog siv sab nraud F tsuas yog sib npaug lub zog ntawm kev sib txhuam kinetic , Fk, ces cov khoom swb ntawm qhov nrawm nrawm, thiab cov coefficient ntawm kev sib txhuam yog hu ua coefficient ntawm kinetic kev sib txhuam, μk.
Dab tsi yog siv quab yuam hauv kev sib txhuam?
Qhov kev sib txhuam quab yuam no hu ua kev sib txhuam zoo li qub. Thaum peb nce lub zog thov (thawb nyuaj), kev sib txhuam quab yuam yuavkuj nce mus txog thaum nws nce mus txog tus nqi siab tshaj plaws. Thaum lub zog thov loj dua qhov siab tshaj plaws ntawm kev sib txhuam zoo li qub, cov khoom yuav txav mus. … Qhov loj ntawm qhov kev sib txhuam kinetic yog: fk=μkN.
