Calculate the mean $\backslash (\backslash$bar$\{$t$\}\backslash )$ and standard error, $\backslash (\backslash$boldsymbol$\{$S E$\}\backslash )$ of the three trials for each of the lengths. Also calculate the period $\backslash (\backslash$boldsymbol$\{$T$\}\backslash ).$ Record those results in Table L$3-1$ as below:

Table L$3-1$

Mass

Calculate the mean, $\backslash (\backslash$bar$\{$t$\}\backslash )$ and standard error, SE of the three trials for each of the masses. Also calculate the period $\backslash (\backslash$boldsymbol$\{$T$\}\backslash ).$ Record those results in Calculations Table L$3-2.$