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Redbelly98
#2
Dec8-08, 05:41 PM
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Welcome to PF!

The way we give help on this forum is, the student comes up with the equations he or she believes are relevant to solving the question, and shows an attempt or thoughts on solving the problem. If you could do that, you're more likely to get help.

Also, it's a good idea to make separate posts for separate questions.

Again, welcome!

p.s. the official Physics Forums rule about homework questions:
Quote Quote by Physics Forums Global Guidelines
NOTE: You MUST show that you have attempted to answer your question in order to receive help. You MUST make use of the homework template, which automatically appears when a new topic is created in the homework help forums.

On helping with questions: Any and all assistance given to homework assignments or textbook style exercises should be given only after the questioner has shown some effort in solving the problem. If no attempt is made then the questioner should be asked to provide one before any assistance is given. Under no circumstances should complete solutions be provided to a questioner, whether or not an attempt has been made.