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According to our records you have not yet redeemed an access code for this class or purchased access online. The grace period win end Frday January 20 2017 at 12 00 AM EST Anorthat date you wa ro WebAssign assignments or grades GstaRetas Three charged marbles are glued to a nonconducting surface and are placed in the diagram as shown. The charges of each marble are er 6.30 uc, 1.20uc, and as -2.50 uc. Martle qi is a dstance distance r 2.00 cm to the right of the marble az as shown. while marble is a 3.00 cm to the left of the marble catalate the magnitude of the electric reld a distance r-1.00 om to the enoruecerter marble. Another marble is placed 1 om to the left of the middle martle, ir tris new martle has a change of 360 vc, aloulate the magnitude and directon ofthe force on n.

Explanation / Answer

Field= K q/r^2

Field of q1= 9*10^9*6.30*10^-6/0.02^2 to the right = 141750000 to the right

Field of q2 = 9*10^9 * 1.20*10^-6/ 0.01^2 to the left = 108000000 left

field of q3= 9*10^9*2.50*10^-6/ 0.03^2 to the right =25000000 right

Net= 58750000 N/C right = 5.9*10^7 N/C to the right

b) Force= charge * field= 3.6*10^-6*5.9*10^7=211.5 N to teh right

check the calculations once

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