 Good morning, physics students. It's Friday, April 10th, and we are starting the Unit 4 content. All of that Unit 4 content is now available on Blackboard, and your practice problems for day are already up and loaded along with the extra video examples for how to solve those problems. I think that you'll find the video example problems to be especially helpful, so please do take a look at those so that you can use those to help you figure out, particularly on the vector parts on the backside of today's worksheet. If you have any questions on that, please let me know. Make sure that you're doing your pre-lectures, your practice problems, and submitting those on Blackboard. I'm going to have some additional announcements I'll put out this weekend, giving you some more details about the exam. If you didn't check in with me on Wednesday, you need to still do that, otherwise your marked is not attending, and you need to read over that study guidance that was handed out in the folder for Wednesday. If you have any questions, let me know.