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  1. When we define PE --> 0 as r --> r, such as when calculating escape velocity from a planet with mass ... = GMm/r, the stored energy gets smaller as r --> infinity. And that's just not the physics of energy is...

    2 Answers · Science & Mathematics · 16/08/2014

  2. Torque τ = F*R= Iα where I =MR^2/2 and α is the angualar accceleration...and exerts a torque on M giving an angualar accceleration α. a = R α For the mass M, F = I α/R = [MR...

    1 Answers · Science & Mathematics · 05/07/2010

  3. |r| = sqrt(5^2 + 10^2) = sqrt(125) = 5 * sqrt(5) r(hat) = (5.00 / (5 * sqrt(5))) i(hat) + (-10.00 / (5 * sqrt(5))) j(hat) r(hat) = (1.00...

    2 Answers · Science & Mathematics · 07/10/2010

  4. ...you could THEN turn into a fraction. ie ( 2.4 + 0.003)^(-2) < R^(-2) < (2.4 - 0.003)^(-2) 0.173178 < R ^(-2...

    4 Answers · Science & Mathematics · 08/09/2019

  5. ...absolute (same uncertainty units as the R² & √R values) why not just use the max and min values...56) x 100% = +/- 0.173% ANS repeat same method for √R {the answer can be no more significant than the R value

    1 Answers · Science & Mathematics · 08/09/2017

  6. ... (1/infinity - 1/R1) = = GMm (0 - 1/R1) = -GMm/R Convenient formula, is not it? In this case the energy ...

    3 Answers · Science & Mathematics · 23/04/2008

  7. ...you re-draw this ckt you have 6Ω in parallel with R in parallel with E +1Ω in parallel with 3... because the current MUST be down into the R for KVL to be satisfied. Remember...

    1 Answers · Science & Mathematics · 08/10/2016

  8. ... unlikely so try to the right of the 2µC first. Let r be the distance right of the 2µC 2.8/(r+0.035)² = 2/r²...

    2 Answers · Science & Mathematics · 25/05/2017

  9. a) The charge per unit volume is ρ=ρ1 (r/R) where r is the distance from the center. Divide the entire... = π(ρ1)(R^3) b) Let the electric field at a distance r from the center be E. Consider a Gaussian Surface...

    2 Answers · Science & Mathematics · 14/04/2009

  10. ... by the solid) dV = = ∫[from θ=-π/2 to π/2] dθ ∫[from r=0 to cos(θ)] r dr ∫[from z=0 to r cos(θ)] dz = = π/8 2. This ...

    1 Answers · Science & Mathematics · 16/06/2010

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