We observe the uniform rectilinear motion along the verticalof a droplet of glyc
ID: 1764841 • Letter: W
Question
We observe the uniform rectilinear motion along the verticalof a droplet of glycerine A of spherical radius r, thedroplet is subjected to its weight and force of viscosity friction,given by Stokes' law:3. A prolonged observation shows that the velocity suffers, atinstants , sudden variations. We mesure particularly the followingvelocities in mm / s : v1 = 0,270 ; v2 = 0,080 ; v3 = 0,175 ; v4 = 0,363 ; v5 =0,458. Find the charge from the preceding details (this charge wasdiscovered in 1923 by Milikan).
Explanation / Answer
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