Answer
$1800^{\circ}$
Work Step by Step
$\frac{600\,rotations}{1\,min}=\frac{600\times360^{\circ}}{60\,sec}=3600^{\circ}/sec$
Degrees moved in $\frac{1}{2}\,sec$= $\frac{1}{2}\,sec\times\frac{3600^{\circ}}{sec}=1800^{\circ}$
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