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  1. Answer ... V = - r E • ln [ r / a ] ... Consider the rod as a very long uniformly ...z-axis and that the field point lies on the xy-plane at a perpendicular distance r from the cylinder axis … by taking an imaginary cylindrical Gaussian surface...

    1 Answers · Science & Mathematics · 10/08/2012

  2. R-value is measured in meter²·°C/Watt (in the...·°F·h/Btu). Materials may be rated in R/inch, R/meter, etc. To calculate the R-value of a wall, you calculate...

    2 Answers · Science & Mathematics · 27/02/2010

  3. R and 5 Ω are in series => their equivalent resistance = 27 + 5... 32 Ω, 5 Ω and 10 Ω are in parallel. If R' is their equivalent resistance, 1/R' = 1/10 + 1/5 + 1/32...

    2 Answers · Science & Mathematics · 28/07/2010

  4. r x F is the definition of torque, where r and F are vectors and "x" means the vector cross...

    1 Answers · Science & Mathematics · 16/12/2009

  5. ...with speed v traveling in the +y direction and it is at a location of x=r, y=0. It is circling around the origin as you would likely guess...

    3 Answers · Science & Mathematics · 23/11/2010

  6. r-hat cross phi-hat = theta-hat r-hat is the unit vector in a direction in which only r changes and theta and phi...and theta-hat is the unit vector in a direction in which only theta changes and r and phi remain constant.

    1 Answers · Science & Mathematics · 07/01/2012

  7. For the 1/r^2 law, it's because the flux of the electric field through a closed surface is constant. As r increases, the surface area of the sphere of radius r increases proportional to r^2 (specifically 4r^2). Therefore the flux...

    3 Answers · Science & Mathematics · 03/04/2013

  8. F = (m x v^2) / R a. If F increases, what in the right hand equation must R...decrease. Do you see that there is an "inverse" relationship between R and F if (m x v^2) remains unchanged? b. F and...

    2 Answers · Science & Mathematics · 14/09/2009

  9. x^2 + y^2 = r^2 so r = sqrt(3.61^2 + 2.85^2). Theta = arctan (y/x) but since both x and...

    1 Answers · Science & Mathematics · 12/01/2014

  10. R is your distance from the centre of mass of the Earth...or move to the equator ) you increase the distance from the centre ; you increase R , and reduce the force of attraction between you and the Earth... increasing...

    2 Answers · Science & Mathematics · 12/09/2012

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