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  1. a) τ = r x F where τ, r and F are vectors and x represents...

    1 Answers · Science & Mathematics · 22/04/2020

  2. Fg / r = GMm/r^3 Which is not particularly useful if you ask me, are you sure that's what you mean?

    3 Answers · Science & Mathematics · 11/07/2019

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

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

  4. R = 37.2^2/9.80*sin 28.2 = 141.2*0.4726 = 66.73 m

    2 Answers · Science & Mathematics · 13/08/2019

  5. change in energy = R(1/3² - 1/5²) = 1.55e-19 J and change in energy = hv / λ so λ = hv / change in energy = 6.626e−34J·s * 2.998e8m/s / 1.55e-19J λ = 1.282e-6 m = 1.282 µm = 1282 nm

    2 Answers · Science & Mathematics · 14/06/2019

  6. A/ torque τ = r x F = 0.10m * 10N = 1.0 N·m B/ For a solid cylinder...

    1 Answers · Science & Mathematics · 12/06/2019

  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. tangential velocity Vt = ω*r = 23*1.75 m/sec Ke = m/2*V^2 = 18/2*(23*1.75)^2 = 14,581 joule or J = m*r^2 = 18*49/16 KE = J/2*ω^2 = 9*49/16*23^2 = 14,581 joule

    1 Answers · Science & Mathematics · 17/10/2019

  9. For a particle, angular momentum = m*v*r which is conserved since no external torques are ...

    1 Answers · Science & Mathematics · 29/02/2020

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