A system vibrates as shown by the graph above.

$1$a$)$ If possible, calculate the quantities listed below based on the data in the graph. If it is not possible to calculate one or more of the below quantities, write "unknown" in the answer blank.

$\backslash$table$[[$Amplitude$,],[$Period$,],[$Frequency$,],[$Wave Length,$]]$

$1$b$)$ The vibration shown in the above graph is undamped. In the space provided, draw the position time graph for vibrating system if were underdamped instead.