Recent content by Gemy4

  1. G

    Calculating Induced EMF: 50 cm^2 to .005 M^2

    Thank you!
  2. G

    Calculating Induced EMF: 50 cm^2 to .005 M^2

    anyone?
  3. G

    Calculating Induced EMF: 50 cm^2 to .005 M^2

    Homework Statement A flat coil of wire consisting of 20 turns, each with an area of 50 cm^2 is positioned so that the normal to its plane is at the angle of 30 degrees to a uniform magnetic field that increases its magnitude at a constant rate from 2.0T to 8.0T in 2.0 s. Homework Equations...
  4. G

    Finding Equivalent Resistance in a Combination Circuit

    There are no numerical values for R. I asked my friend and the correct answer is 2 + (3)^-1. Not sure how she got it.
  5. G

    Finding Equivalent Resistance in a Combination Circuit

    I tried that answer already and it says "Check the syntax of your response".
  6. G

    Finding Equivalent Resistance in a Combination Circuit

    Thank you is this correct I only have one more submission
  7. G

    Finding Equivalent Resistance in a Combination Circuit

    Homework Statement What is the equivalent resistance of the combination of identical resistors between points a and b in the figure below?Homework Equations Series= Req= R1 + R2 + R3 etc Parallel = Req= (1/R1 + 1/R2 + 1/R3 etc)^-1The Attempt at a Solution Req= R1 + (1/3R) + R3 I don't know...
  8. G

    Not sure what the initial temperature is

    Ok Thank you.
  9. G

    Not sure what the initial temperature is

    Sorry edited
  10. G

    Not sure what the initial temperature is

    Homework Statement At what temperature will aluminum have a resistivity that is three times the resistivity of tungsten at room temperature? Rt=5.6 X 10^-8 ohm*m (The resistivity coefficient of tungsten at 20 degrees celsius) R0=1.59 x 10^-8 ohm*m (The resistivity coefficient of...
  11. G

    Two point charges along the y-axis.

    DOH! This whole time I was putting 4.56 in the answer instead of -4y + 4.56=.56. Now I can understand the movie A Beautiful Mind so much more, its addicting to get the right answer. I was up until 3:30 Am last night. Thank you so much... but Ill be back lol!
  12. G

    Two point charges along the y-axis.

    Kq1/r^2 = kq2/(d-r)^2 so kq2/(d-r)^2= Kq1/r^2 correct? So my original 9x10^9 (8.5x 10^-6)/(10-r)^2 = 9x10^9(6x10^-6)/r^2 should be ok correct? k=9x10^9 q1=8.5^10-6 q2=6x10^-6 d=10 So according to your responses I did set it up correctly?? I made r2 to r. Doesnt change anything. meaning...
  13. G

    Two point charges along the y-axis.

    Ive tried like a hundred different set ups could you write out the equation its supposed to be its due tonight?
  14. G

    Two point charges along the y-axis.

    Homework Statement A charge of q1 = -8.5 μC is at y = 6.0 m, and a charge of q2 = -6 μC is at y = -4.0 m. Locate the point (other than infinity) at which the total electric field is zero.Homework Equations E=k(q/r^2) E1=E2 Quadratic Equation The Attempt at a Solution 9x10^9 (8.5x...
  15. G

    Where Did the Mysterious '6' Come From in F24 Calculation?

    Beautiful! Also why is it that she used q1 and q4 vs. q3 and q4. I realize it will produce the same answer.