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1. ### In (Figure 1), the charge q=1.28×10^−9 C.?

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. ### How Do I Solve This Length of Contraction Problem?

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. ### What would the force be if the separation between the two charges was adjusted to 7.31 ✕ 10-11m? (Physics)?

...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. ### how do I calculate the final velocity?

...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. ### Find the average distance between atoms in a uniform gas that has a density of N atoms per unit volume.?

... 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. ### You are in charge of a cannon that exerts a force 12600 N on a cannon ball while the ball is in the barrel of a cannon...?

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. ### Physics HW Help?

... = 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. ### physics ... help please?

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