Find the force of attraction in newtons between the charges Q1 and Q2 in Fig. 1 whena. r =...

Find the force of attraction in newtons between the charges Q1 and Q2 in Fig. 1 when

a. r = 1 m

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b. r = 3 m

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c. r = 10 m

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d. Did the force drop off quickly with an increase in distance?

FIG. 1