Monday, February 25, 2008

Homework 6

Here you go. Mostly magnetism, a couple of induction questions. Due Monday, 3 March at 17:00.

Enjoy.

UPDATE:

My bad, uploaded the wrong file. It should be fixed now.
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6 comments:

  1. AnonymousFebruary 25, 2008 at 3:16 PM

    i can't upload the document.

    ReplyDelete
  2. AnonymousFebruary 25, 2008 at 4:14 PM

    me either..

    ReplyDelete
  3. AnonymousFebruary 25, 2008 at 5:22 PM

    havin problem openin it.....

    ReplyDelete
  4. pleclairFebruary 25, 2008 at 5:25 PM

    Ok, that was my fault ... wrong file uploaded.

    It should work now!

    ReplyDelete
  5. AnonymousMarch 1, 2008 at 11:18 AM

    on number 4 part c, you said that C=2pir=40 cm. are we supposed to solve for r and plug that into the equation for area of a circle (pir^2)?

    when i did that, i ended up with the square having the biggest torque, then the circle, then the triangle, and i thought you said the circle should have the biggest torque.

    ReplyDelete
  6. pleclairMarch 2, 2008 at 11:34 PM

    You are right to set C=2pir and solve for r. Then the area is pi*r*r ... which should still give the largest area (and thus torque) for the circle.

    Square: each side is 40/4 or 10cm.

    Not sure why it is coming out that the square has the biggest torque, but I would double check your areas.

    ReplyDelete