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a Take let Test 2 Electrostatics-x d37744 18courseid- 17243 18.content id766294 18iquestion.num 3 Timed Test This test has a time lmit of 5 hours This test will save and submil automatically when the time expres Wamings appear when halt the time, 5 minutes, 1 minute, and 30 seconds remain MIİple Aaerpt This test alows 5 ahrpts This is attingt rurter 1 Ferce Completion This test can be saved and resumed at any polnt until Sine has expired The timer will continue to run if you leave the test This tesot does not alow backtracking Changes to the answer ather submission are prohiblted Remaining Time: 4 hours, 55 mivutes, 02 seconds. Question Completion Status Moving to the nest question prevents changes to this anwer Question 4 5 points The force of atraction betareen a 40 0 iC and +108 uC charge is 4 00 N What is the separaion batween these two charges ? 249m 2 10m 1.13m 367 m 3.12m & Moving to the next question prevents changes to this an S No Te Tengo A.mpl 8. 9 F G ↑shift
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Answer #1

4) Force = kq1q2 / r^2

where q1,q2 are the charges

r = separation between the charges

4 = 9*10^9*40*10^-6*108*10^-6 / r^2

r = 3.12 m

so last option is the correct answer

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