Sort by

- Relevance
- |Time

C =

**k***e*A/d, where C = capacitance in Farads**k**= relative permittivity e...1 Answers · Science & Mathematics · 08/02/2020

a) The force on q1 due to q3 (r=10cm = 0.1m) is: F13 =

**k**.q1.q3/r² = 9*10^9 * (-3*10^-6) * (3*10^-6) / 0.1² = -8.1N...1 Answers · Science & Mathematics · 22/06/2019

... elasticPE = KE + GPE as leaves spring 1/2

**k**x^2 = 1/2 m v^2 + m g h 1/2(630)(0.18^2) = 1/2 (0.19) v^2 + 0.19(9.81)(0...1 Answers · Science & Mathematics · 03/07/2019

...force = Static frictional force kx = μ(s)N kx = μ(s)mg x = μ(s)mg/

**k**x = 0.60*1.5*9.8/(1.2 x 10³) x = 0.00735 m or 7.35 mm The block...2 Answers · Science & Mathematics · 20/10/2019

V =

**k**(3µ)/0.14 = 193000 volts Potential from a charge is V = kQ/r in volts**k**= 1/4πε₀ = 8.99e9 Nm²/C² r is separation in ...1 Answers · Science & Mathematics · 09/02/2020

I remember when two waves a sin

**k**z+ a sin**k**(z+dz) merge we we find a sin kz+ a sin kz cos**k**dz...when theta is very small, tan theta = theta. The condition**k**dz= kd theta= 2 n pi. You can find the angle between 2 and...4 Answers · Science & Mathematics · 16/06/2019

U =

**k**q2 q1 / r21 +**k**q2 q3 / r23 U =**k**q2 (q1 / r21 + q3 / r13)**k**= 9x10^9 Nm^2/C^2 U = 9x10^9*3.8x10^-6*(-2x10^-5 / 1.15 + 5.3x10^-5 / 2.88) = 3.46x10^-2 J1 Answers · Science & Mathematics · 21/05/2019

From ω=√︎(

**k**/μ) you see that you have to assess how μ changes from CH to CT...1 Answers · Science & Mathematics · 13/09/2019

... + 492N*sin31º = 600 N friction force f = µ

**k***Fn = 0.59 * 600N = 354 N net horizontal force Fnet = ...1 Answers · Science & Mathematics · 28/05/2019

From Q, the force =

**k*** Q*2Q/L² at 0° From 4Q, the force =**k***...1 Answers · Science & Mathematics · 02/05/2019