. A new member . i hope someone could help me with my homework :(
Welcome to the PF.
We have an extensive Homework Help area, so I'm sure we will be able to help you. Just be sure to read the rules about posting schoolwork questions here (see INFO at the top of the page). You will fill out a Homework Help Template when starting a new schoolwork thread, and it includes sections for you to list the Relevant Equations and show your Attempt at a Solution. As long as you fill out the Template and show as much of your work as you can, you will get great help here.
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