ssignment Scoring Your last submission is used for your score. 1. 0-10 points Se

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ssignment Scoring Your last submission is used for your score. 1. 0-10 points SerCP11 15.P001 A 7.17-nC charge is located 1.91 m from a 4.58-nC point charge. (a) Find the magnitude of the electrostatic force that one charge exerts on the other. (b) Is the force attractive or repulsive? / attractive repulsive Need Help? LRead. Submit Answer Save Progress Practice Another Version 2.10 points SerCP11 15.P006 A molecule of DNA (deoxyribonucleic acid) Is 2.05 um long. The ends of the molecule become singly i Type here to search 144 2 5 Q WE

Explanation / Answer

1. Fe = k q1 q2 / r^2

k = 9 x 10^9

q1 = 7.17 x 10^-9 C

q2 = 4.58 x 10^-9 C

r =1.91 m

Putting values, Fe = 81 x 10^-9 N .......Ans

(b) charge are of same sign.

hence force will be repulsive.

Ans: Repulsive

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