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1) An atomic nucleus has a charge of +40e. An electron is 10-9 m from the nucleus. What is the force on the electron? A) 9.2 nN B) 6.8 nN C) 3.7 nN D) 2.9 nN E) 1000 C FIGURE 19-14 +4.0 microC 60 deg 20 cm 20 cm 60 deg 60 deg +2.0 microC 20 cm +3.0 microd 0pC, +4.0 μC are located at the corners of a triangle 2) Three point charges of magnitude +2.0 μC, +3. as shown in Figure 19-14 The resultant force acting on the +4.0 uC charge is given by A) 1.8 N at 97 with the ty-axis. B) 2.7 N at 97° with the y-axis. C) 3.9 N at 97 with the tr-axis. D) 2.7 N at 97° with the w-axis. E) 3.9 N at 97 with the y-axis.
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