$(1.)$

In Part A of the lab, the echo "duration" is converted to distance $($in cm$).$ If the echo time or

duration was $2000$ us$,$ how far away was the reflecting surface $1?$ In order to compute the distance based on the value stored in duration we'll need to recall a few facts:

$1s=1106s$

$v=34,300c\frac{m}{s}$

$$ Time$-$of$-$flight is twice the one$-$way travel time. $($S$$ we'll divide duration by $2)$

$v=xtan$

Use these facts to create an equation that computes distance in units of $cm$ based on the time$-$

of$-$filight stored in duration in units of $s.$

float distance $=????$;