A water wheel rotates $\displaystyle {5}$ revolutions every $\displaystyle {41}$ seconds. Through approximately how many radians does it rotate in:

(i)  $\displaystyle {1}$  second?   radians.

(ii)  $\displaystyle \frac{{5}}{{8}}$-th second?   radians.

(iii)  $\displaystyle {52}$ seconds?   radians. 

Please round your answers to the nearest tenth.