valles (lqv65) – Homework 2 – markert – (55980)1Thisprint-outshouldhave21questions.Multiple-choice questions may continue onthe next column or page – find all choicesbefore answering.For Question 13: In our book, Eq. (23.11)gives a linear restoring force, and thus simpleharmonic motion, wheny << R.001(part1of2)10.0pointsConsider three charges arranged as shown.-++4.4 cm3.1 cm2μC7.8μC−1.8μCWhat is the electric field strength at a point1.3 cm to the left of the middle charge? The2.Answer in units of N/C.002(part2of2)10.0pointsWhat is the magnitude of the force on a 1.8μCcharge placed at this point?Answer in units of N.10.0points2.Answer in units of N/C.004(part1of2)10.0pointsA rod of length 16 m with uniform charge perunit length 53 C/m, is placed a distance 6 mfrom the origin along thexaxis. A similar rodwith the same charge is placed along theyaxisas in the figure. Consider only an infinitesimalsegment of length Δxon the horizontal rod,which is placed along thexaxis, with thesegment at a distancexfrom the origin.