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... * 10kg * (8m/s)² = 320 J a) 320 J = ½ *

**k*** (4.2m)² and so**k**= 36.3 N/m which should probably be rounded...1 Answers · Science & Mathematics · 28/04/2020

L = Lo*(1+

**k***ΔT) L = 120*(1+17*10^-6*(24-21)) = 120.006 mm lenght increases by 6 μm1 Answers · Science & Mathematics · 20/10/2019

field B =

**k***µ₀*N*I/L where**k**is the relative permeability... is the length so the answer depends on your value for**k**. Using**k**= 200 and plugging in the other values, I get...1 Answers · Science & Mathematics · 06/03/2020

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

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

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