There is no such thing as an AC Generator, if its a generator, its DC. I think you are talking about an AC Alternator, in which case the answer would be -wrong answer, deleted-
P = m*v
7.5 = m*15
m = 7.5/15 = 0.5 kg
True, because people should reach their full potential within themselves and human psychologist should help those that need help to reach it.
Answer: 
The following vectors have been given: 
The angle between these two vectors can be found by:




Yesterday was the day that we got canceled on it so we had a lot