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  1. It is not true that R=V/length. You can get resistance R = V / I where... suspect that it is to calculate the resistivity ρ of the wire material. R = ρℓ / A so, if you plot R (vertical) vs ℓ/A...

    2 Answers · Science & Mathematics · 11/09/2019

  2. ... is the volume VG of the Gaussian sphere (radius R) … “ should be: “What is the volume VG of the Gaussian...

    2 Answers · Science & Mathematics · 10/09/2019

  3. ... where k = 1/4πε₀ = 8.99e9 N·m²/C² For r < 10 cm, the outer shell of charge has no effect on the field...

    1 Answers · Science & Mathematics · 12/09/2019

  4. cosΘ = adj / hyp = z / √(z²+R²)

    1 Answers · Science & Mathematics · 05/09/2019

  5. QUESTION1: How much charge is enclosed by Gaussian sphere S2? No, you don't need a formula. You're told that the "total charge [is] q", so I'd say qenc = q QUESTION 2: so how much charge is...

    1 Answers · Science & Mathematics · 11/09/2019

  6. For z >> R, E = qz / [4πε₀*(z²+R²)^(3/2)] ≈ qz / [4πε₀...

    2 Answers · Science & Mathematics · 04/09/2019

  7. dA^ = r^ dh dφ E = k q r^ / r³ then the angle θ between the electric field vector E^ and the vector dA^ is null

    1 Answers · Science & Mathematics · 12/09/2019

  8. we must use r^2 v= constant. r is the radius and v is the velocity. first condition...4*4=1. This remains a constant. In the second segment r=1. velocity =1 m/s. In the third segment (1/4)^2 v=1. v=16 m/s...

    3 Answers · Science & Mathematics · 15/09/2019

  9. V = kq/r so r = kq/V = 8.98755179e9 * 1e-5/1e4 = 8.98755179e9 * 1e-5/1e4 = = 8.98755179e9...

    3 Answers · Science & Mathematics · 15/09/2019

  10. ...s= ut + ½at². You forgot the “½”: r(t) = <40t, 0t + ½(-8)t², 64t + ½...

    1 Answers · Science & Mathematics · 07/09/2019

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