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3. Given the following charge distribution: q, =ー5.0x10 C at (hy-)= (+40m,00m) q-=-3.0 × 10-3 C at (x34%) = (0.0m,+4.0m) a) Draw charge distribution on a coordinate system, and sho w the direction of the electric fields due to each charge E, and E, at the origin. b) Find the vector form of E,-field at the origin. c) Find the vector form of E,-field at the origin. d) Find the vector form of the resultant E-field at the origin. e) Find the magnitude and direction of the E -field (with respect to the +x-axis) of the resultant force. f) Find the force on an a-particle (Helium nucleus), q = 2e = +3.2 × 10-tCif placed at the origin.


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1 tu 2 E, 21 너m (b) eletnc elol due to charge 2, atthe din 2. Cu02 2,812 x 106 (1 ) N/ 2 5521 (3) (4)2(2 812 XIo 6810) [B12 2 3-229o c 2,81 2 ΧΟ 360 30-6329 o4 dig vces +n and). (3-2 xo59) (3-279 지。6) 10.49 X10-3N

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