Recent content by jlwood13

  1. J

    Unknown Charge Ratio Calculation

    I figured it out. Using E=kQ/r^2, set kQ1/(r1)^2=kQ2/(r2)^2 and solve for Q1/Q2. r1=l/3, r2=2l/3. Thanks for your help.
  2. J

    Unknown Charge Ratio Calculation

    I apologize. I added the relevant question.. If they add up to zero, they must be opposite in direction and proportional, correct?
  3. J

    Unknown Charge Ratio Calculation

    Homework Statement You are given two unknown point charges, Q_1 and Q_2 . At a point on the line joining them, one-third of the way from Q_1 to Q_2 , the electric field is zero (see figure). The charges are separated by length, L. What is the ratio of the charges Q1/Q2? Homework Equations...
  4. J

    What are the frequencies of the fundamental and first two overtones?

    When dividing my the unit mass I used .6 instead of .9. It was an error in number crunching. Thanks for your help! Sorry that I didn't respond sooner. Also, thanks for the welcome!
  5. J

    What are the frequencies of the fundamental and first two overtones?

    Homework Statement A guitar string is 90.0 cm long and has a mass of 3.17 g. From the bridge to the support post is 60.0 cm and the string is under a tension of 506 N. What are the frequencies of the fundamental and first two overtones? (f1,f2,f3) Homework Equations v=sqrt(FT/m/l)...