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  1. At point r the positive charge on the right creates a field kq/(r-a)^2, this field ...the right direction. The negative charge creates a field of magnitude kq/(r+a)^2, and this field is pointed to the left. To get the net field...

    5 Answers · Science & Mathematics · 31/01/2009

  2. R = k.A.∆θ / L R depends on area A .. doubling dia. increases R by factor 4 .. (A proportional to D²) R depends on 1...

    1 Answers · Science & Mathematics · 17/11/2011

  3. ... the number of moles of moles in the gas, and so R relates the energy of a mole of molecules to the temperature. ...

    4 Answers · Science & Mathematics · 13/01/2007

  4. R is ion fact Avogadro's number multiplied by the...via Maxwell-Boltzmann statistics, if you must know, but essentially, R is slightly more fundamental than it initially appears.

    1 Answers · Science & Mathematics · 31/10/2013

  5. ...yet undetermined magnitude v and direction, draw an arc of a circle with radius of curvature r and draw a vector V1 tangent to that arc. The back of the vector ...

    4 Answers · Science & Mathematics · 23/06/2011

  6. ...a long a circle would be given by <p> = <r*cos(Ө) , r*sin(Ө)> To get the velocity vector we take the...

    1 Answers · Science & Mathematics · 06/05/2012

  7. vector addition r = r1 + r2 resolve vector along (x) and (y) directions with respective unit vectors as (i) and (j) r(x) = r1 cos 59 (i) + r2 cos 55 (i) r(x) = 1.2 cos 59 (i) + 7.3 cos 55 (i) r(x) = [1.2 cos 59 + 7.3 cos 55] (i...

    1 Answers · Science & Mathematics · 04/07/2007

  8. Multiply both sides by r'(t). Then we have r'r'' = -MGr'/r^2. ... expression. The extra factor of 2 comes from integrating r'r'' after multiplying each side by r'. So yes, it...

    1 Answers · Science & Mathematics · 26/10/2014

  9. My proof requires calculus. Consider any point (r cos wt, r sin wt) on a circle with center (0,0) and radius r and rotational...2 wt] = sqrt[r^2 w^2] = rw^2, since cos^2 wt + sin^2 wt = 1. rw^2 = r(v/r)^2 = v^2 / r.

    3 Answers · Science & Mathematics · 02/04/2008

  10. ... increases. The only way for F to remain constant when r decreases is if v decreases as well. F will become...

    3 Answers · Science & Mathematics · 10/03/2011

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