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

... 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

... 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

cosΘ = adj / hyp = z / √(z²+

**R**²)1 Answers · Science & Mathematics · 05/09/2019

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

For z >>

**R**, E = qz / [4πε₀*(z²+R²)^(3/2)] ≈ qz / [4πε₀...2 Answers · Science & Mathematics · 04/09/2019

dA^ =

**r**^ dh dφ E = k q**r**^ / r³ then the angle θ between the electric field vector E^ and the vector dA^ is null1 Answers · Science & Mathematics · 12/09/2019

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

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

...s= ut + ½at². You forgot the “½”:

**r**(t) = <40t, 0t + ½(-8)t², 64t + ½...1 Answers · Science & Mathematics · 07/09/2019