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Homework Help: Some physics problems, please help me, thanks!

  1. Oct 4, 2012 #1
    i have some physics problems, please help me, thanks!

    Question 1: IMG_0235.JPG

    Question 2: IMG_0236.JPG

    Question 3: IMG_0237.JPG
  2. jcsd
  3. Oct 4, 2012 #2


    Staff: Mentor

    Welcome to the Physics Forum!

    If you eant help on these questions you need to:
    1) place each question in a separate thread
    2) show us some work so we can see where you're stuck
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