Recent content by oma

  1. O

    What is the best wireless PDA phone?

    I am looking for a PDA-Phone. The specifications are as follows: - GSM Tri or Quad Band Phone service. - WiFi - Excellent Bluetooth (recommend headset pairing please) - Large color screen - Windows Pocket PC Mobile - Skype Compatible - Fast Price is not an issue. Nice to Have: - 1.2 megapixel...
  2. O

    Physics: Magnetism and Electromagnetism?

    A long straight wire carries a current of 15 A. An electron travels with a velocity of 5x10^6 cm/sex parallel to the wire, 10cm from it and in the same direction as the current. What force does the magnetic field of the current exert on the moving electron? Find the magnetic induction along the...
  3. O

    Physics: index of refraction?

    If the transparent material has an index of refraction of 1.2, what is the angle of incidence beyond which total internal reflection occurs?
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