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  1. So did you need help with anything? a) k(-2q) / (0.750 m) + k(5q) / (0.250 m) Where k = 8.99×10^9 Vm/C b) k(-2q) / x = k(5q) / (1 m - x) 2 - 2x = 5x x = 2/7 m

    2 Answers · Science & Mathematics · 19/09/2019

  2. Assuming you meant 105 m length, (a) 105 m = 99.0 * √(1 / (1 - k²)) solves to k = 0.333 (about 1/3 of c) (b) no contraction in the transverse direction, so 65.0 m. If you find this helpful, please award Best Answer!

    1 Answers · Science & Mathematics · 08/05/2019

  3. ...23.27 because force is inversely proportional with the square of the distance (1.86×10^-7 N) * 23.27 = 4.32×10^-6 N So you don't have to do the kq1q2 part since you already did it. The charges have...

    3 Answers · Science & Mathematics · 05/02/2019

  4. ...8)(99.5) ½m11.11² = ½mV² + m(9.8)(99.5) 11.11² = V² + 2(9.8)(99.5...123.5 – 1950 negative result means the car did not have enough speed to get to the top of the hill...

    4 Answers · Science & Mathematics · 01/02/2019

  5. ... just a basic school-level question and a simple answer will do. Call the unit length L. E.g. L... per row. n = 100. (Actually we should use n-1 = 99 if counting correctly. But as n will be huge...

    1 Answers · Science & Mathematics · 23/09/2018

  6. The work done by the force must increase the kinetic and...ball with very low friction) Fd = ½mv² + mgh Fd = ...the best answer would be m = 6.99 kg That trailing zero...

    5 Answers · Science & Mathematics · 28/04/2018

  7. ... = 80.81 m/s. Momentum of 1 kg piece is 1•10.2 = 10.2 kgm/s down. That means the 0.3...piece h = v²/2g = 34²/2•9.8 = 58.98 m total = 99.78 m c) time to reach peak before explosion t = v/g = 28.28/9...

    1 Answers · Science & Mathematics · 19/04/2018

  8. Work done is equal to the change in potential energy, U = kq₁q₂.../R₂ − kq₁q₂/R₁ = kq₁q₂(1/R₂ − 1/R₁) ∆U = kq₁q₂(1/√(0....

    1 Answers · Science & Mathematics · 07/04/2018

  9. ...405 t = 4.05 µs 1 = 3e^(–t/10µs) –t/10µs = ln 1/3 = --1.099 t = 10.99 µs How does the initial value of the current in an RC circuit depend upon the (a) resistance? (b...

    1 Answers · Science & Mathematics · 02/03/2018

  10. ...which is 11m / 9m/s = 1.222 s his throw takes 1.222 sec to travel 22 m. So the horizontal velocity is...peak, half travel time v = gt = 9.8 m/s² x 0.611 s = 5.99 m/s angle = arctan (5.99/18) = 18.4º

    2 Answers · Science & Mathematics · 19/02/2018

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