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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 m2 Answers · Science & Mathematics · 19/09/2019

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

...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

...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

... 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

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

... = 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

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

...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

...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) = 18.4º2 Answers · Science & Mathematics · 19/02/2018