Kev xaiv tsav kev piav qhia, xaiv kev paub txog kev txawj ntse thiab kev txiav txim siab xaiv
Ua ntej, xaiv kev xaiv: kev txawj ntse yooj yim
Newton peb txoj cai ntawm cov cuab yeej cuab tam:
1. Tej khoom siv uas nyob ruaj ruaj los sis khiav tawm ntawm qhov ceev kom txog thaum nws raug yuam los ntawm lwm yam khoom los hloov nws.
2. Cov khoom yuav ua kom acceleration thaum nws raug rau sab nraud quab yuam. Cov kev taw qhia ntawm kev khiav ceev yog tib yam li kev coj ntawm sab nraud quab yuam. Qhov siab tshaj ntawm kev ua kom acceleration yog proportional to qhov ntau ntawm sab nraud quab yuam thiab inversely proportional rau cov huab hwm coj ntawm qhov khoom.
3. Cov quab yuam thiab cov tshuaj tiv thaiv ntawm ob yam khoom yog sib npaug thiab tawm tsam hauv cov kev taw qhia rau tib txoj kab.
Qeb peb, rooj lus tseem ceeb:
1. Cov hmoov txhuas ntawm cov hlau kheej kheej yuav tsum tsawg tshaj li qhov ua tau raws li qhov khiav ceev ceev txaus siab.
2. Tsav tsheb khiav ceev yuav tsum tsis txhob qis dua tus nqi qis, dua li ntawm 90% ntawm qhov kev zov me nyuam.
3. Rov ua dua peev xwm tom qab tsim qauv hloov.
Yog tias koj xav yuav lub cav pa roj carbon monoxide, thov koj mloog kom kub roj ntsha.
