Cov txheej txheem:
Video: Yuav ua li cas koj xam sig figs?
2024 Tus sau: Taylor Roberts | [email protected]. Kawg hloov kho: 2023-12-16 00:29
Txhawm rau txiav txim siab tus lej twg yog qhov tseem ceeb thiab uas tsis yog, siv cov cai hauv qab no:
- Qhov zero rau sab laug ntawm tus lej lej tsawg dua 1 tsis tseem ceeb.
- Tag nrho cov zeros tom qab uas yog tus tuav tsis tseem ceeb.
- Zeros ntawm tus lej xoom yog qhov tseem ceeb.
- Txhua tus lej tsis yog xoom yog qhov tseem ceeb.
Ntawm no, 5 Txoj Cai ntawm cov nuj nqis tseem ceeb yog dab tsi?
Cov Duab Tseem Ceeb
- Cov lus piav qhia qeb:
- RULES RAU QHOV TSEEB TSEV KAWM NTAWV.
- Txhua tus lej tsis xoom yog qhov tseem ceeb.
- Zeros ntawm ob tus lej uas tsis yog xoom yog qhov tseem ceeb.
- Ua zeros tsis yog qhov tseem ceeb.
- Taug qab zeros mus rau sab xis ntawm cov lej yog qhov tseem ceeb.
- Trailing zeros nyob rau hauv ib tug tag nrho tus lej nrog cov zauv qhia yog qhov tseem ceeb.
Ntxiv mus, pes tsawg tus lej tseem ceeb 10.0 muaj? ob
Yog li ntawd, ua li cas koj tig mus rau tus lej tseem ceeb?
Hloov mus rau ib qho tseem ceeb daim duab:
- saib thawj tus lej uas tsis yog xoom yog hloov mus rau ib tus lej tseem ceeb.
- saib tus lej tom qab thawj tus lej uas tsis yog xoom yog hloov mus rau ob tus lej tseem ceeb.
- kos kab ntsug tom qab tus lej tus lej tus lej uas xav tau.
- saib tus lej tom ntej.
Muaj pes tsawg tus lej tseem ceeb muaj 100?
Yog tias koj xav kom ntsuas tau 100 nrog peb cov duab tseem ceeb (hais txog qhov tsis paub tseeb ntawm), koj tuaj yeem sau nws li 100 . (nrog rau tus lej lej tom qab) lossis, tsawg dua, zoo li, lossis (zoo dua) nrog qhov tsis meej meej xws li lossis 100 rau peb cov duab tseem ceeb ”.
Pom zoo:
Koj xam xam lux thiab lumens li cas?
1 lx = 1 lm/mm2. 1 Lumen ib Square Meter: Lumen ib square meter sib npaug rau Lux (SI unit). Kev ntsuas tus naj npawb ntawm Lumens poob ntawm thaj tsam ntawm ib square meter, lub ntsiab lus ntawm Lux
Koj xam xam qhov nruab nrab qhov pom kev li cas?
Qhov nruab nrab qhov ci ntsa iab a = ntev ntawm chav nyob hauv meters; b = dav ntawm cheeb tsam hauv meters; h = nrug deb ntawm qhov nruab nrab ntawm cov teeb pom kev zoo thiab lub dav hlau uas koj yuav tsum ntsuas lub teeb pom kev zoo (piv txwv li qhov siab ntawm cov teeb pom kev zoo 2.80 m, qhov chaw ua haujlwm ntawm qhov siab 0.8 m, h = 2.80 txog 0.8 = 2)
Yuav ua li cas koj hloov mus rau sig figs?
Cov Cai rau Tus Zauv Nrog Lub Ntsiab Lus Taw Qhia Pib suav rau sig. figs. Nyob rau ntawm FIRST tus lej uas tsis yog xoom. STOP suav rau sig. figs. Tus lej tsis xoom yog ib txwm tseem ceeb. Ib qho xoom tom qab thawj tus lej uas tsis yog xoom tseem yog qhov tseem ceeb. Cov xoom ua ntej thawj tus lej tsis yog xoom tsis tseem ceeb.??
Koj xam xam qhov chaw txav chaw nyob li cas?
Txhawm rau txiav txim siab qhov hloov chaw ntawm qhov chaw nres nkoj, peb tsuas yog muab thaj tsam hla ntu los ntawm qhov ntev ntawm qhov chaw nres nkoj (uas peb tau txiav txim siab ua 12 "hauv qhov piv txwv no.) Displaced Volume = 9.61625 X 12 = 115.395 cu.in
Koj xam xam pib lub zog ntawm lub cav li cas?
Raws li koj pom qhov sib npaug torque yog cov khoom ntawm lub zog thiab qhov kev ncua deb ntawm lub zog thiab qhov chaw ntawm kev sib hloov. Piv txwv li, yog tias koj xav tuav lub zog ua haujlwm ntawm qhov kawg ntawm rub, T = F x r