PHYSICS: Funny thing about words, all this work you thought you’d been doing, was it? Work, I mean? Great intro to chapter 5! I think you’ll do great with the work problems, just remember everything from the last chapter and multiply by d!
Did you get the word – the thLAB is due Thursday.
PHYSICS 11-19-13 Work from Tammy Skinner on Vimeo.
flickr photo by *hb19
I’m extremely confused on the efficiency lab. We haven’t gone over energy, and I don’t know how to calculate it, what units to use, etc to determine the efficiency. I see in the syllabus we are going over energy tomorrow, seemingly too late to understand this lab and make a good grade… What is the energy?
P.S. I’m assuming E = MC^2 isn’t going to be helpful?
Energy is the same unit as work. I think they are basically the same thing as well. Also, the lab is due Thursday. There was a typo on the syllabus.
Van – a) READ b) We missed you today! 🙂
I don’t understand how we are finding work in the x direction if there is no work when an object is moved horizontally?
What is energy in and energy out? What does that mean?
Energy In = Energy before hitting the ground. Unless you throw the ball down, this is only from gravity.
Energy Out = Energy after hitting the ground. This energy makes the ball bounce.
Can we have a help session soon im kind of confused on a few of the problems
Michael – Sure, when?