Help needed asap - AC current (1 Viewer)

[EkGew]

I have to post here to get some attention of people, since i kinda need to know this exactly by tomorrow. But if you could look at the link, and give me a hand, that would be appreciated!

http://community.boredofstudies.org/264/motors-generators/116094/need-help-understanding-ac-currents.html