In Fig. 21-22, the particles have charges q, q,- 249 nC and q,-94-190 nC, and distance a-5,0 cm. (a) Find the components of the net electrostatic force on particle 3. F. - and F (b) In what quadrant is this force? O Quadrant 1 Quadrant2 O Quadrant3 O Quadrant4 Fig. 21-22 (c) Find the electric field at the location of particle 3. HINT: Consider a, a test charge. and E, (d) Now suppose that we change the charge on particle 3 to q-150 nC, while leaving the other particles with the same charge as before. Find the force on particle 3 when it has this new charge... and /
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