Homework Help: Physics!!!

Posted by anna on Thursday, January 19, 2012 at 7:03pm.

A small sphere of mass m = 6.40 g and charge q1 = 30.3 nC is attached to the end of a string and hangs vertically as in the figure. A second charge of equal mass and charge q2 = −58.0 nC is located below the first charge a distance d = 2.00 cm below the first charge as in the figure.

(a) Find the tension in the string.
N

(b) If the string can withstand a maximum tension of 0.180 N, what is the smallest value d can have before the string breaks?
cm

Physics!!! - bobpursley, Thursday, January 19, 2012 at 8:23pm
Which string? Assuming the string holding between the masses.

Tension= mg-kq1q2/.02^2

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