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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

2. The angle is given w/

**r**/t horizontal, so Ax = A*cos45.0º Ay = A*sin45....1 Answers · Science & Mathematics · 15/09/2019

... energy between two charges, in Joules U = kQ₁Q₂/

**r**Q₁ and Q₂ are the charges in coulombs...1 Answers · Science & Mathematics · 14/09/2019

...) Therefore the ratio of frequencies becomes

**r**= ω=√︎(μT/μH) = ω=√︎3 approximately. The wavenumber therefore...1 Answers · Science & Mathematics · 13/09/2019

..., then flux = 10^3 N/C (4.0 j (dot) k + 3.0 k (dot) k) (pi *

**R**^2). j (dot) k = 0, and k (dot) k = 1, so flux = 10^3 N/C * 3 * pi...1 Answers · Science & Mathematics · 13/09/2019

... 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

...since that's the enclosed charge (per unit length, for a cylinder of radius

**r**_i) Q2) λ = 0 (See citation, esp. pg 5. Upshot: field ...1 Answers · Science & Mathematics · 12/09/2019

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

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