Re: Feem pua Sig Figs? Yes, koj ib txwm tso nws tawm ntawm tus nqi qis tshaj ntawm sig figs uas tau muab rau hauv qhov teeb meem.
Puas muaj sig figs rau feem pua?
Qhov no yog qhov teeb meem tseem ceeb, thiab yog nyob ntawm qhov tseeb ntawm cov lej hauv qab feem pua. Tus lej raug raug ntawm cov lej tseem ceeb tsis yog nyob ntawm kev siv qis qis lossis qhov sib txawv ntawm feem pua tus nqi.
Yuav suav li cas yog ib daim duab?
Muaj peb txoj cai los txiav txim seb muaj pes tsawg tus lej tseem ceeb hauv tus lej: Tus lej tsis yog xoom yog qhov tseem ceeb. Ib qho xoom ntawm ob tus lej tseem ceeb yog qhov tseem ceeb. Qhov kawg xoom los yog tom qab xoom hauv qhov thib kaum tsuas yog qhov tseem ceeb.
Is 0.02 a sig fig?
Zeros rau sab laug ntawm thawj tus lej tsis suav hauv tus lej tsis tseem ceeb; lawv tsuas yog qhia txoj hauj lwm ntawm tus zauv point-0.02 g (ib daim duab tseem ceeb); 0.0026 cm (ob daim duab tseem ceeb).
20% muaj pes tsawg sig figs?
Piv txwv li, yog muab ib qho teeb meem uas 20. mL siv, ces muaj 2 sig figs nyob rau hauv tus naj npawb 20.
