spring energy = work done + final KE ½kd² = µ

**k***m*g*0.050m + ½mv² When I plug in your values I get d = 0.107 m which should be rounded to 0.11 m = 11 cm1 Answers · Science & Mathematics · 07/02/2020

1/R= 1/r1 +1/r2 ie., 1/38= 1/56+ 1/r2 Solving you get r2 = 118 kilo ohm.

1 Answers · Science & Mathematics · 05/02/2020

C =

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

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

potential = kQ / r where

**k**= 1/4πε₀ = 8.99e9N·m²/C² so potential = 8.99e9N·m²...1 Answers · Science & Mathematics · 03/02/2020

... at a distance r is given by Vₑ = kQ/r, where

**k**is the Coulomb constant: 8.99 × 10⁹ N·m²/C²...2 Answers · Science & Mathematics · 07/02/2020

... - false so in your format, B, C 8d. dE =

**k***λ*z*dx / (z²+x²)^1.5 E =**k***λ*z*∫ dx / (z²+...1 Answers · Science & Mathematics · 08/02/2020

... one charge and also you should have used the given value of

**k**in the question (8.98755 × 10^9 ·m² /C²) (even though this precision ...1 Answers · Science & Mathematics · 09/02/2020

... + mgx = ½kx² I'll assume you meant

**k**= 5.2E4 N/m ½*80kg*(9.4m/s)² + 80kg*9.8m...1 Answers · Science & Mathematics · 07/02/2020

... force in newtons r is separation in meters

**k**= 8.99e9 Nm²/C²2 Answers · Science & Mathematics · 03/02/2020