Answer
$0.01~m$, $0.005~m$, $0.00096$, $0.10\%$
Work Step by Step
For the measurement $5.20~m$, we have:
The last digit is in the $0.01$ place, so the precision is $0.01~m$.
The greatest possible error is one-half the precision:
$0.5\cdot 0.01 \ rpm=0.005 \ m$
The relative error is
$relative~error=\dfrac{greatest~possible~error}{measurement}$
$\frac{0.005\ m}{5.20\ m}=0.00096$
The percent of error is $0.096\%$.
