Recent content by sunchips

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    Electric Field in Faraday Cage: Effects on Shielding

    just for amusement, are smallphi and ice109 enemies/rivals? :P
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    Explaining the Uniform Electric Field Between Parallel Plates

    I heard that two flat conducting parallel plates have the property that electric field at any point between them, is uniform, and of constant magnitude. I was wondering how this was possible. For example, a test charge closer to the positive plate conpared with a test charge closer to the...
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    Electric Field in Faraday Cage: Effects on Shielding

    i heard that a faraday cage is often used in shielding e.g. sensitive electrical equipment. I was just wondering, because, in http://socrates.berkeley.edu/~fajans/Teaching/cartoons/Shielding/TestChargeShielding_files/frame.htm it seems that the electric field is not zero at ALL times. i.e...
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    Sir Isaac Newton Contest: Find the Minimum Length for a Safe Landing

    If I want to determine the motion of the plane, with respect to the Earth, is its motion = 50m/s - decel due to friction force? or from here, do we still ahve to take into consideration the motion of the barge?
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    Sir Isaac Newton Contest: Find the Minimum Length for a Safe Landing

    From the Sir Isaac Newton contest: A 1.0*10^3 kg plane is tryin to make a forced landing on the deck of a 2.0*10^3 kg barge at rest on the surface of a clam sea. THe only frictional force to consider is between the plane's wheels and the deck, this braking force is constant and is equal to...
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    What does it take to become the best?

    The Feynman Lectures on Physics including Feynman's Tips on Physics: how are these books for physics training. i am thinking of buyig them. how much help r they for ipho training? thanks!
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    If water is exposed to high voltage, it will ionize.

    I'm sorry..I think I didn't explain my situation well enough. I am asking, in terms of say... suppose we have a heating element submerged in water. (e.g. a coffee maker, or amny other possible everyday things). When the current is passed through the nichrome heating element, will the current...
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    If water is exposed to high voltage, it will ionize.

    so is this true? Thanks!
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    If water is exposed to high voltage, it will ionize.

    so, say a circuit is submerged in the water. The circuit requires only a 0.83V to ionize the surrounding waters?!? Wow! I though it wouold be much higher than that!
  10. S

    If water is exposed to high voltage, it will ionize.

    if water is exposed to high voltage, it will ionize. What is the minimum voltage needed for that to happen? Thanks!
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