Answer:
10
Step-by-step explanation:
(12 + x0.5) <= 17
With a uniform electric field, flux go along parallel paths, then flux is therefore proportional to the cosine of the angle rotated.
0 degree rotation => cos(0)=1 => 100% of flux.
60 degrees rotation => cos(60) => 0.5 => how many % of flux?
(3/4)/3
3/12
1/4
So he spent a 1/4 hour milking each group.
Answer:
I don't know that one sorry