The Expert TA Human. x e Chegg Study l Guided Solut e Suppose You Have A 75 NF +

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The Expert TA Human. x e Chegg Study l Guided Solut e Suppose You Have A 75 NF + LTX TakeTutorialAssignment.aspx Assignment-1 Begin Date: 1/23 2018 12:01:00 AM- -Due Date: 2/4/2018 11:59:00 PM End Date: 2/5 2018 11:59:00 PM (7%) Problem 1: The force between two charges is increased by decreasing the distance between them. Then force is increased by a factor of 27 Assignment Status Click here for detailed view By what factor did their separation decrease? mutulTow'- Grade Summary Deductions 9% 91% Problem Status sin0 Partial Completed Partial Partial cosO cotanasinacos0 atan acotansinh) cosh tanh) cotanh) O Degrees O Radians Submissions Attempts remaining: 3 (3%) per attempt) delailed view 3% 3% 3% Submit Hints: 1 % deduction per hint. Hints remaining: Feedhack: On deduction per feedback 849 PM 1/272018 lype here to search

Explanation / Answer

let F is initial force and F' is the new force.

let q1 and q2 are the two charges.

we know, F = k*q1*q2/r_initial^2

F' = k*q1*q2/r_new^2

F'/F = (r_initial/r_new)^2

27 = (r_initial/r_new)^2

==> r_initial/r_new = sqrt(27)

r_initial/r_new = 5.20 <<<<<<<<------------Answer

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