About the Author Yunus A. ?engel (Turkey) is Professor Emeritus of Mechanical Engineering at the University of Nevada, Reno. Read more
Posted by Anastasia J G
wtffff i do not understand this!
Posted by Cristian
so many fake sites. this is the first one which worked! Many thanks
Posted by John Macciva
lol it did not even take me 5 minutes at all! XD