Lub siab puas nce nrog cheeb tsam?

Video: Lub siab puas nce nrog cheeb tsam?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Yog tias koj siv tib lub zog ntawm ib qho cheeb tsam ntawm 1 sq siab yog 10 N ib square meter. Yog li, rau tib lub zog, yog tias tus cheeb tsam txo, cov siab nce.

Tsis tas li ntawd, thaj tsam cuam tshuam li cas?

Q: ua li cas qhov txo qis hauv qhov chaw thaj chaw cuam tshuam tus siab ntawm lub zog muab? Los ntawm nws txhais tau tias: Siab = quab yuam/ Thaj chaw . Yog li ntawd rau lub zog muab yog tias koj txo qhov cheeb tsam los ntawm ib qho ntawm ob, ces tus siab yuav nce los ntawm ib qho ntawm ob.

Tsis tas li ntawd, puas siab nce hauv cov yeeb nkab me? Nyob rau hauv ib tug dej ntws pipeline, yog hais tias lub cheeb ntawm ib cev txo, cov siab hauv kab yuav nce . Bernoulli's theorem hais tias yuav tsum muaj kev txo qis hauv siab thaum lub cheeb tsam raug txo. Qhov nqaim dua cev , qhov siab dua qhov nrawm thiab qhov loj dua siab poob.

Ib yam li ntawd, puas nce siab nce siab?

Bernoulli txoj cai hais tias ib sawv (lub caij nplooj zeeg) hauv "static" siab nyob rau hauv cov dej ntws yuav ib txwm nrog los ntawm kev txo qis ( nce ) nyob rau hauv lub ceev ntawm cov kua, thiab conversely, ib nce (qis) hauv qhov ceev ntawm cov kua ua rau txo qis ( nce ) nyob rau hauv lub "static" siab.

Lub siab puas nyob ntawm qhov ntim?

Cov siab exerted los ntawm ib tug static kua nyob ntawm tsuas yog nyob ntawm qhov tob ntawm cov kua dej, qhov ntom ntawm cov kua dej, thiab qhov nrawm ntawm lub ntiajteb txawj nqus. Qhov tseem ceeb tshaj plaws ntawm qhov kev qhia no yog nws li cas ua tsis suav nrog. Cov kua dej siab ntawm qhov tob muab ua tsis yog nyob ntawm raws li tag nrho pawg los yog tag nrho ntim ntawm cov kua.

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