Answer
$30\space degrees\space per\space hour$
Work Step by Step
To find the solution, we need to convert 2 rev/ day into degrees/h.
$1\space rev= 360\space degrees,$ so we can multiply revolutions by the ratio $360\space degrees/rev$ to get degrees. Similarly $1\space day = 24\space h$. We can use the conversion factor of $24\space h/day$ to convert days into hours. Combining these two conversions gives,
$2\space rev /day = (\frac{2\space rev}{day})\times(\frac{360\space degrees}{ rev})\times(\frac{1\space day}{24\space hour})$
$\space\space\space\space\space\space\space\space\space\space\space\space\space\space\space\space\space= \frac{720}{24}\space rev/day$
$\space\space\space\space\space\space\space\space\space\space\space\space\space\space\space\space\space = 30\space degrees/h $
$$Answer\space is\space 30\space degrees\space per\space hour$$
