Some students who have been submitting their academic problems to this forum have been critical of the lack of attention they are receiving.
The truth is the forum is for professionals with professional design problems. If a forum member considers your problem to be academic you will not receive assistance. You are expected to do your homework and find your solutions on your own or with the help of your instructors or classmates.
However, there is a caveat. If you approach your problem in such a manner that we can coach you to a solution we may offer help. The best way to do this is attempt to solve the problem on your own by creating a diagram. Save this diagram as a gif or jpg and post it along with your problem. Expect responses that lead you to a better answer not provide you with an answer.