Video: Koj pom qhov ceev hauv lej li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov ntom yog qhov loj ntawm ib yam khoom faib los ntawm nws ntim. Qhov ntom feem ntau muaj units ntawm grams ib cubic centimeter (g / cm3). Nco ntsoov, grams yog qhov loj thiab cubic centimeters yog ib lub ntim (lub ntim tib yam li 1 milliliter).
Raws li txoj cai, koj ua li cas thiaj nrhiav tau qhov ntom ntom nrog tsuas yog loj?
Qhov ntom Formula rau nrhiav pawg los ntawm ceev , koj xav tau qhov sib npaug Qhov ntom = Pawg ÷ Volume or D = M÷V. Qhov tsim nyog SI units rau ceev yog g/cubic cm (grams per cubic centimeters), alternally expressed as kg/cubic m (kilograms per cubic meters).
Ib tug kuj yuav nug, dab tsi yog tus qauv rau pawg? Cov pawg ntawm ib yam khoom tuaj yeem suav nrog ntau txoj hauv kev: pawg = ntom × ntim (m = ρV). Qhov ceev yog qhov ntsuas ntawm pawg ib unit ntawm ntim, yog li cov pawg ntawm ib yam khoom tuaj yeem txiav txim siab los ntawm kev sib npaug ntawm qhov ntim. pawg =force÷ acceleration (m = F/a).
Hais txog qhov no, dab tsi unit yog ntsuas nyob rau hauv?
Cov mis rau qhov ntom yog d = M / V, qhov twg d yog ntom, M yog loj, thiab V yog ntim. Qhov ceev yog feem ntau qhia nyob rau hauv units ntawm grams rau kub cm . Piv txwv li, qhov ntom ntawm cov dej yog 1 grams rau kub cm , thiab lub ntiaj teb qhov ceev yog 5.51 grams rau kub cm.
Volume density thiab mass yog dab tsi?
Pawg , ntim thiab ceev yog peb ntawm ib yam khoom uas yooj yim tshaj plaws. Pawg yog qhov hnyav npaum li cas, ntim qhia koj tias nws loj npaum li cas, thiab ceev yog pawg faib los ntawm ntim.
Pom zoo:
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Koj ua lej lej hauv PHP li cas?
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