Welcome to PHY 121 Blog Help. Here's how it works. For each homework question and lab report we will make a post, this will probably contain a few tips on what the problems are about and how to solve them. If you are stuck on something then instead of emailing us directly you should post a comment in reply to the relevant post. We will try to guide you through tough points and help you understand the problems and the concepts behind them.
Thursday, September 9, 2010
Ch3_1 #4
For the vector problem: 1. Click on vector A 2. Click “add vector” 3. Select “unlabelled vector” 4. With the cross hair draw a vector on top of A 5. Repeat the same for B 6. Add Vector 7. Select D and draw it
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