[填空题]
A student measures a length five i0r 6)9uwvj0+c +ez-dhug8v51cm(ogz jb ps w times. All of the measurements ;q,dmocq0nf uh c.a vol6a777 gxe*e+lie between $18.8 \mathrm{~cm}$ and $19.2 \mathrm{~cm}$. What should the student quote as the absolute uncertainty in the length? The absolute uncertainty is $cm$ (please only input numerical value without units and without the $\pm$ symbol.)
Post time 2024-8-21 21:38:19