Peb yuav tsum xam qhov hnyav ntawm a 4×8 daim ntaub ntawm aluminium phaj nrog lub thickness ntawm 1/8 nti.
Ua ntej, peb yuav tsum paub qhov ceev ntawm txhuas thiab nws cov thickness cuam tshuam li cas nws ntim.
Kev sib raug zoo ntawm pawg (m) thiab ntim (V) ntawm ib yam khoom yuav qhia tau los ntawm cov lej hauv qab no:
m = ρ × V
qha r (rho tawm) yog qhov ntom ntawm cov khoom, uas piav txog qhov loj ntawm ib chav tsev ntim ntawm cov khoom.
Qhov ceev ntawm txhuas yog kwv yees li 2.7g / cm3.
Thiab 1 nti = 2.54 cm, yog li ntawd 1/8 nti = 0.3175 cm.
Lub ntim ntawm aluminium phaj tuaj yeem xam los ntawm cov qauv hauv qab no:
luas = luas = 4 x 8 cm x 0.3175 cm
Hloov cov ntim no thiab qhov ntom ntawm aluminium rau hauv cov mis loj, peb tuaj yeem tau txais qhov hnyav ntawm aluminium phaj.
Cov txiaj ntsig suav yog: qhov hnyav ntawm aluminium phaj yog 35.28 grams.
Yog li ntawd, ib tug 4×8 daim ntawv ntawm aluminium phaj nrog lub thickness ntawm 1/8 nti hnyav 35.28 grams.
4×8 aluminium ntawv yog feem ntau siv ib qho. Yog xav yuav thiab paub 4×8 Ntawv ntawm 1/8 inch aluminium nqi, Kuv yuav muab cov lus qhia ntxaws ntxaws rau koj.