https://www.physicsforums.com/showthread.php?p=543646#post543646 I asked this question earlier and I didn't get any significant help, atleast beyond what I already knew. I do not know how to calculate this, nor do my classmates who I have seen also posed this question to the forum. Please help!! I know the concept, but I can not calculate it. I have worked on it for a few days now, and it is due in about an hour.