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31. ** Predict/Calculate The point charges in FIGURE 19−42 have the following values: q1 = +2.1 μC, q2 = +6.3 μC, q3 = −0.89 μC. (a) Given that the distance din Figure 19−42 is 4.35 cm, find the direction and magnitude of the net electrostatic force exerted on the point charge q1. (b) How would your answers to part (a) change if the distance d were doubled? Explain. FIGURE 19-42 Problems 31, 32, 46, and 55

31. ** Predict/Calculate The point charges in FIGURE 19−42 have the following values: q1 = +2.1 μC, q2 = +6.3 μC, q3 = −0.89 μC. (a) Given that the distance din Figure 19−42 is 4.35 cm, find the direction and magnitude of the net electrostatic force exerted on the point charge q1. (b) How would your answers to part (a) change if the distance d were doubled? Explain. FIGURE 19-42 Problems 31, 32, 46, and 55

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    • Predict/Calculate The point charges in FIGURE 19 − 42 have the following values: q 1 = + 2.1 μ C , q 2 = + 6.3 μ C , q 3 = − 0.89 μ C . (a) Given that the distance din Figure 19 − 42 is 4.35 cm , find the direction and magnitude of the net electrostatic force exerted on the point charge q 1 . (b) How would your answers to part
FIGURE 19-42 Problems 31 , 32 , 46 , and 55 (a) change if the distance d were doubled? Explain.

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