Recent content by jetsfan101202

  1. J

    Electricity Physics Problem involving Coloumb's Law

    yes i did 2(.34/sqrt(.342+x2)*(kQ/(x2+.342)) and it increased from x=1 to x=2 ... x=5 thats the right equation though correct?
  2. J

    Electricity Physics Problem involving Coloumb's Law

    thanks again for the help. After reading over you last post it's very clear that the answer should be x=5 because it will keep increasing and 5 is the limit. The issue is that when I type 5 into the answer for "b) position of maximum force" on the webassign it is incorrect. Maybe the programming...
  3. J

    Electricity Physics Problem involving Coloumb's Law

    well Q1 =Q2 so looking at your fist post you said F=Q3*E(E being the added electric field of Q1 and Q2) so I think the issue is how do I find "E here is the net field produced by Q1 and Q2 ,note that you need to do vector addition)" im sorry I'm getting confused. I realize that Q1 and...
  4. J

    Electricity Physics Problem involving Coloumb's Law

    so for the vertical component... (8*10^-19)*-(d2/sqrt(x2+d2))(kQ1/sqrt((.342+x2)2)+(d2/sqrt(x2+d2))(kQ2/sqrt((.342+x2)2))) and the horizontal... (8*10^-19)*(x2/sqrt(x2+d2))(kQ1/sqrt((.342+x2)2)+(x2/sqrt(x2+d2))(kQ2/sqrt((.342+x2)2))) but how do I solve for maximizing x...
  5. J

    Electricity Physics Problem involving Coloumb's Law

    sorry I forgot the x component of that (8*10^-19)*(cos(theta)(kQ1/sqrt((.342+x2)2)+cos(theta)(kQ2/sqrt((.342+x2)2)))
  6. J

    Electricity Physics Problem involving Coloumb's Law

    (8*10^-19)*(-sin(theta)(kQ1/sqrt((.342+x2)2)+sin(theta)(kQ2/sqrt((.342+x2)2))) is that correct since the E of Q1 would be down and E of Q2 would be up? How would I find theta though?
  7. J

    Electricity Physics Problem involving Coloumb's Law

    F=Q3*E so (8*10^-19)*(kQ1/sqrt((.342+x2)2)+kQ2/sqrt((.342+x2)2) then just find the value of x where it is the greatest?
  8. J

    Electricity Physics Problem involving Coloumb's Law

    Homework Statement In Fig. 21-29, particles 1 and 2 of charge q1 = q2 = +4.80*10^-19 C are on a y-axis at distance d = 34.0 cm from the origin. Particle 3 of charge q3 = +8.00*10^-19 C is moved gradually along the x-axis from x = 0 to x = +5.0 m. At what values of x will the magnitude of the...
  9. J

    Gravitational Energy and Kepler's Law

    isn't that what I did in my attempt at a solution? the only other thing I realize is that the force of gravity is 2r not r. so m(v^2/r)=GMm/(2r^2). Do I need two separate equations for both stars?
  10. J

    Gravitational Energy and Kepler's Law

    [b]1. In a double-star system, two stars of mass 6.0 *10^30 kg each rotate about the system's center of mass at a radius of 2.0 * 10^11 m. (a) What is their common angular speed? (b) If a meteoroid passes through the system's center of mass perpendicular to their orbital plane, what minimum...
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