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1. ### physics question??

... vector arithmetic. for the left charge Ex = 2µk/r² pointed right Ey = 0 for the right charge... in Newtons/coulomb OR volts/meter k = 1/4πε₀ = 8.99e9 Nm²/C²

1 Answers · Science & Mathematics · 28/08/2019

2. ### Physics Problem?

l = 10cm = 0.1 m k = 0.84 J/s·m·C A = 30 m² ΔT = 360 ...

2 Answers · Science & Mathematics · 15/08/2019

3. ### An 10000 kg freight car rests against a spring bumper at the end of a railroad track.?

...8200/18200)^2 this goes into the spring. 1/2 kx^2 = 1/2 m v^2 x^2 = m v^2 /k x = sqrt( m v^2 / k) = sqrt( 18200*(8.3 * 8200/18200)^2 / (3.2 * 10 ^ 5) ) = 0.89 m...

2 Answers · Science & Mathematics · 12/10/2019

4. ### Physis Tension Question?

... / A₂Y₂ for nylon ₁ + and copper ₂ 1m * 5e-5/K * -20K + 1m * 1.6e-5/K * -20K = F₁*1m / (π/4)(0.005m...

1 Answers · Science & Mathematics · 22/09/2019

5. ### what is the potential on this surface? ?

potential = kQ / r where k = 1/4πε₀ = 8.99e9N·m²/C² so potential = 8.99e9N·m²...

1 Answers · Science & Mathematics · 03/02/2020

6. ### Figure below shows four charges at the corners of a square of side L.What magnitude and sign of charge Q will make the force on charge q 0?

...the field due to the other two corner charges: kQ / (2L²) = 2*k*10nC*cos45º / L² which leads directly to Q...

1 Answers · Science & Mathematics · 01/09/2019

7. ### what is the electric field at a point 0.450 m to the left of a -5.77*10^-9 C charge?

let q2 = 1 C F = k q1 q2 / d^2 F = 8.99E9 (-5.77E-9)(1) / 0.450^2 = -256 ...

2 Answers · Science & Mathematics · 13/01/2020

8. ### A spring whose constant is 26 N/m is compressed 6.3 cm and a 40 g ball is placed on it.?

Conservation of energy shall apply : k/2*x^2 = m*g*h h = k*x^2/(2*m*g) = 6.3^2*10^-4*26/(2*40*9.806*10^-3 = 0.132 m = 13.2 cm

1 Answers · Science & Mathematics · 17/01/2020

9. ### Find the kinetic energy of a xenon atom if it is traveling 22.4 m/s.?

So if this is the formula for kinetic energy (K_E) K_E = (1 / 2) * mass * (velocity)^2. Now all we ...

3 Answers · Science & Mathematics · 08/04/2019

10. ### Physics question - spring constant?

Δh = 5.90-1.35 = 4.55 m 31.9^2 = Vo^2+2*g*Δh Vo = √31.9^2-19.612*4.55 = 30.47 m/sec k*x^2 = m*Vo^2 k = m*Vo^2/x^2 = 0.035*30.47^2/0.111^2 ≅ 2640 N/m

1 Answers · Science & Mathematics · 01/06/2019