Recent content by jason.maran

  1. J

    Magnetic Force on Moving Parallel Plate Capacitor

    Ah, OK, thanks a bunch! Worked like a charm after that!
  2. J

    Magnetic Force on Moving Parallel Plate Capacitor

    Thanks for your help, swuster. I'm still having a bit of trouble though. I've done the following now: E = (q/A)/2Eo 170 = (q/7.5e-4)/(2 * 8.85e-12) q = 2.25e-12 C Then I substitute in and solve for F: F = qvB = (2.25e-12)(31)(4) = 2.79e-10 N, which is wrong, unfortunately. I feel...
  3. J

    Magnetic Force on Moving Parallel Plate Capacitor

    Homework Statement The drawing shows a parallel plate capacitor that is moving with a speed of 31 m/s through a 4.0 T magnetic field. The velocity v is perpendicular to the magnetic field. The electric field within the capacitor has a value of 170 N/C and each plate has an area of 7.5...
  4. J

    How Is Ice Formed When Aluminum Cools Water?

    Thanks alphysicist -- that was it, thanks for the help. I really appreciate it! :)
  5. J

    How Is Ice Formed When Aluminum Cools Water?

    I'm still not getting the answer correct, I've now got: (0.185)(9e2)(155) - (1.5)(4186)(-2.1) - (1.5 - x)(33.5e4) = 0 x = 1.3836 kg I'm wondering if my quantity (1.5 - x) is wrong for finding the amount of ice formed? Thanks for your help EDIT: I'm getting my values for L from...
  6. J

    How Is Ice Formed When Aluminum Cools Water?

    I'm working on the following homework problem but have just been stumped: A 0.185 kg piece of aluminum that has a temperature of -155°C is added to 1.5 kg of water that has a temperature of 2.1°C. At equilibrium the temperature is 0.0°C. Ignoring the container and assuming that the heat...