A spherical rain drop of radius 1.00 mm has a charge speed of an identical but uncharged drop is 5.50 m/s. The drag force is related to the drop's speed by Fd = bv (turbulent drag rather +3.40 nC. The electric field in the vicinity is 2.00 kN/C downward. The terminal han viscous drag). Calculate the terminal speed of the charged rain drop. Density of water is 1.000 × 103 kg/m³. |m/s
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- The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 3.0 × 105 N/C. What is the surface charge density on the drum, assuming that the drum is a conductor? Number UnitsA penny is in an external electric field of magnitude 2.5 kN/C directed perpendicular to its faces. (a) Find the charge density on each face of the penny, assuming the faces are planes. nc/m2 (b) If the radius of the penny is 1 cm, find the total charge on one face. pCConsider a thin rod 1 meter in length that carries a non-uniform charge density lamda = .005 mC/m2 x + .001 mc/m where x is the position of a point on the rod relative to an origin placed at one end. How much charge is on the rod? Answer in mC.